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SB430 • 2025

special motions to strike strategic lawsuits against public participation

special motions to strike strategic lawsuits against public participation

Did Not Pass

The latest official action shows that this bill did not move forward in that session.

Sponsor
Senators Roys, Larson, Dassler-Alfheim, Hesselbein, Keyeski, Ratcliff and Spreitzer, cosponsored by Representatives Phelps, Joers, Andraca, Anderson, Arney, Bare, Clancy, Madison, Palmeri, Rivera-Wagner, Snodgrass, Stubbs, Tenorio and Udell
Last action
2026-03-23
Official status
S - Licensing, Regulatory Reform, State and Federal Affairs
Effective date
Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

special motions to strike strategic lawsuits against public participation

special motions to strike strategic lawsuits against public participation Status: S - Licensing, Regulatory Reform, State and Federal Affairs

What This Bill Does

  • special motions to strike strategic lawsuits against public participation Status: S - Licensing, Regulatory Reform, State and Federal Affairs

Limits and Unknowns

  • This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

  1. 2026-03-23 Sen.

    Failed to pass pursuant to Senate Joint Resolution 1

  2. 2026-01-09 Sen.

    Representative J. Jacobson added as a cosponsor

  3. 2025-11-14 Sen.

    Representative Vining added as a cosponsor

  4. 2025-09-29 Sen.

    Introduced by Senators Roys , Larson , Dassler-Alfheim , Hesselbein , Keyeski , Ratcliff and Spreitzer ; cosponsored by Representatives Phelps , Joers , Andraca , Anderson , Arney , Bare , Clancy , Madison , Palmeri , Rivera-Wagner , Snodgrass , Stubbs , Tenorio and Udell

  5. 2025-09-29 Sen.

    Read first time and referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs

Official Summary Text

special motions to strike strategic lawsuits against public participation
Status: S - Licensing, Regulatory Reform, State and Federal Affairs

Current Bill Text

Read the full stored bill text
Wisconsin Legislature: SB430: Bill Text

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SB430: Bill Text

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2025 - 2026 LEGISLATURE
LRB-4505/1
SWB:cdc
2025 SENATE BILL 430
September 29, 2025 - Introduced by Senators
Roys
,
Larson
,
Dassler-Alfheim
,
Hesselbein
,
Keyeski
,
Ratcliff
and
Spreitzer
, cosponsored by Representatives
Phelps
,
Joers
,
Andraca
,
Anderson
,
Arney
,
Bare
,
Clancy
,
Madison
,
Palmeri
,
Rivera-Wagner
,
Snodgrass
,
Stubbs
,
Tenorio
and
Udell
. Referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs.
SB430,1,2
1
An Act

to create
802.065 of the statutes;
relating to:
special motions to strike
2
strategic lawsuits against public participation.
Analysis by the Legislative Reference Bureau
This bill allows a person to file a special motion to strike in a strategic lawsuit against public participation which, if successful, results in dismissal of the claim subject to the motion. Under the bill, a cause of action brought against a person arising from that person’s acts in furtherance of his or her right of petition or free speech under the U.S. or Wisconsin Constitution in connection with a public issue is subject to a special motion to strike, unless the court determines that the plaintiff has established a probability of prevailing on the claim.
The bill provides that an act in furtherance of a person’s constitutional right of petition or free speech in connection with a public issue includes any written or oral statement or writing made 1) before a legislative, executive, or judicial proceeding, or any other official proceeding authorized by law; 2) in connection with an issue under consideration or review by a legislative, executive, or judicial body, or any other official proceeding authorized by law; or 3) in a place open to the public or a public forum in connection with an issue of public interest. The bill also provides that any other conduct might also be considered to be an act in furtherance of a person’s constitutional right of petition or free speech in connection with a public issue. No special motion to strike may be brought in any enforcement action brought in the name of the people of Wisconsin by the attorney general, a district attorney, or a city attorney, acting as a public prosecutor.
In making a determination on a special motion to strike, the court must consider the pleadings and supporting and opposing affidavits stating the facts upon which the liability or defense is based. If the court determines that the plaintiff has established a probability that the plaintiff will prevail on the claim, neither that determination nor the fact of that determination are admissible in evidence at any later stage of the case, or in any subsequent action, and no burden of proof or degree of proof otherwise applicable is affected by that determination in that case or any subsequent proceeding. Under the bill, except in certain circumstances, a defendant who prevails on a special motion to strike is entitled to recover attorney fees and costs. If, however, the court finds that a special motion to strike is frivolous or is solely intended to cause unnecessary delay, the court must award costs and reasonable attorney fees to the prevailing plaintiff. The bill allows a person to appeal as a matter or right an order granting or denying a special motion to strike.
The bill requires that a special motion be filed within 60 days of the service of the complaint or later if the court permits. The motion must be scheduled for a hearing not more than 30 days after the service of the motion unless

the court’s schedule does not allow for a hearing in that timeframe. Unless the court determines otherwise, when a notice of a special motion is filed, all discovery proceedings in the action are stayed until a ruling is made on the motion.
Any party who files a special motion to strike, and any party who files an opposition to a special motion to strike, must provide the director of state courts with a copy of the endorsed, filed caption page of the motion or opposition, a copy of any related notice or appeal or petition for a writ, and a conformed copy of any order issued, including any order granting or denying a special motion to strike, discovery, or fees. Under the bill, the director of state courts must keep a public record of the information for at least three years.
For further information see the state fiscal estimate, which will be printed as an appendix to this bill.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
SB430,1
1
Section
1
.
802.065 of the statutes is created to read:
SB430,2,3
2
802.065

Special motion to strike strategic lawsuits against public
3
participation.

(1)
In this section:
SB430,2,4
4
(a) “Complaint” includes a complaint, cross-complaint, or petition.
SB430,3,1
1
(b) “Defendant” includes a defendant, cross-defendant, or respondent.
SB430,3,2
2
(c) “Plaintiff” includes a plaintiff, cross-complainant, or petitioner.
SB430,3,8
3
(2)
(a)

A cause of action against a person arising from any act of that person in
4
furtherance of the person’s right of petition or free speech under the U.S.
5
Constitution or the constitution of this state in connection with a public issue shall
6
be subject to a special motion to strike, unless the court determines that the
7
plaintiff has established that there is a probability that the plaintiff will prevail on
8
the claim.
SB430,3,11
9
(b) In making its determination, the court shall consider the pleadings and
10
supporting and opposing affidavits stating the facts upon which the liability or
11
defense is based.
SB430,3,17
12
(c) If the court determines that the plaintiff has established a probability that
13
the plaintiff will prevail on the claim, neither that determination nor the fact of that
14
determination shall be admissible in evidence at any later stage of the case, or in
15
any subsequent action, and no burden of proof or degree of proof otherwise
16
applicable shall be affected by that determination in any later stage of the case or in
17
any subsequent proceeding.
SB430,3,22
18
(3)
(a) Except as provided in par. (b), in any action subject to sub. (2), a
19
prevailing defendant on a special motion to strike shall be entitled to recover his or
20
her attorney fees and costs. If the court finds that a special motion to strike is
21
frivolous or is solely intended to cause unnecessary delay, the court shall award
22
costs and reasonable attorney fees to a plaintiff prevailing on the motion.
SB430,4,4
23
(b) A defendant who prevails on a special motion to strike in an action subject
1
to par. (a) may not be awarded attorney fees under par. (a) if that cause of action is
2
brought under s. 19.37 or 19.97. Nothing in this paragraph shall be construed to
3
prevent a prevailing party from recovering attorney fees and costs under s. 19.37 or
4
19.97.
SB430,4,7
5
(4)
This section does not apply to any enforcement action brought in the name
6
of the people of this state by the attorney general, a district attorney, or a city
7
attorney, acting as a public prosecutor.
SB430,4,10
8
(5)
As used in this section, an act in furtherance of a person’s right of petition
9
or free speech under the U.S. Constitution or the constitution of this state in
10
connection with a public issue includes any of the following:
SB430,4,12
11
(a) Any written or oral statement or writing made before a legislative,
12
executive, or judicial proceeding, or any other official proceeding authorized by law.
SB430,4,15
13
(b) Any written or oral statement or writing made in connection with an issue
14
under consideration or review by a legislative, executive, or judicial body, or any
15
other official proceeding authorized by law.
SB430,4,17
16
(c) Any written or oral statement or writing made in a place open to the public
17
or a public forum in connection with an issue of public interest.
SB430,4,20
18
(d) Any other conduct in furtherance of the exercise of the constitutional right
19
of petition or the constitutional right of free speech in connection with a public issue
20
or an issue of public interest.
SB430,5,2
21
(6)
A special motion to strike under this section may be filed within 60 days of
22
the service of the complaint or, in the court’s discretion, at any later time upon
23
terms it determines are proper. The motion shall be scheduled for a hearing not
1
more than 30 days after the service of the motion unless

the court’s schedule does
2
not allow for a hearing within the 30-day timeframe.
SB430,5,5
3
(7)
(a) All discovery proceedings in the action shall be stayed upon the filing of
4
a notice of motion made under this section. The stay of discovery shall remain in
5
effect until notice of entry of the order ruling on the motion.
SB430,5,7
6
(b) Notwithstanding par. (a), the court may, for good cause shown, order that
7
specified discovery be conducted.
SB430,5,9
8
(8)
Notwithstanding s. 808.03 (1), an order granting or denying a special
9
motion to strike shall be appealable as a matter of right.
SB430,5,16
10
(9)
(a) Any party who files a special motion to strike under this section, and
11
any party who files an opposition to a special motion to strike, shall, promptly upon
12
so filing, transmit to the director of state courts, by mail or by email, a copy of the
13
endorsed, filed caption page of the motion or opposition, a copy of any related notice
14
or appeal or petition for a writ, and a conformed copy of any order issued under this
15
section, including any order granting or denying a special motion to strike,
16
discovery, or fees.
SB430,5,19
17
(b) The director of state courts shall maintain a public record of information
18
transmitted under this paragraph for at least 3 years, and may store the
19
information on microfilm or other appropriate electronic media.
SB430,5,21
20
(10)
This section shall be construed broadly to favor protection of the
21
constitutional rights of petition and free speech.
SB430,2
22
Section
2
. Initial applicability.
SB430,6,1
1
(
1
) This act first applies to actions filed on the effective date of this subsection.
SB430,6,2
2
(end)

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