On September 30, 2026, Marquette University Law School Poll released its most recent poll, which surveyed 843 Wisconsin registered voters between September 16-23, 2026. This new poll covers the 2026 general election, including the gubernatorial race, as well as various policy areas.

The margin of error for registered voters polled was +/-4.3%. The sample size of likely voters was 692, and the margin of error was +/-4.8%.

The following September 2026 poll findings may be of interest:

Wisconsin Gubernatorial Candidates – 2026 November General Election
Here is how Wisconsin likely voters said they would vote in the November general election:

• Milwaukee County Executive David Crowley (D)         49%
• Congressman Tom Tiffany (R)                                      46%       
• Undecided                                                                     5%

State Legislature – Generic Vote
When asked generically about voting for state legislative candidates in the November general election, Wisconsin likely voters responded that they would vote in the following manner:

• Democratic State Legislative Candidate                       48%
• Republican State Legislative Candidate                       45%
• Undecided                                                                     7%

General Issues
The most important issue among registered voters:

• Inflation and the cost of living 45%
• Illegal immigration and border security 11%
• Health insurance  9%
• Jobs and the economy  9% 
• Property taxes                                                          7%
• Data centers                                                             5%
• Abortion policy                                                          5%
• Affordability of housing                                             4%
• Public schools                                                          4%
• Crime in your community:                                         2%

State and Local Policy (Among Registered Voters)

Public Schools

• More important to hold down property taxes vs. public school funding is more important                    54%
• Public school funding is more important vs. more important to hold down property taxes                   45%

State Budget Surplus

• Return the entire state budget surplus to taxpayers        48%
• Use the surplus to pay for state and local services          52%

Data Centers/Artificial Intelligence

• How much have voters read or heard about data center construction:
  o   A lot                                      36%
  o   A little                                    56%
  o   Nothing at all:                       7%

• Costs of data centers outweigh the benefits 74%
• Benefits of data centers outweigh the costs 25%

• Favor at least a one-year ban on data center construction 68%
• Oppose at least a one-year ban on data center construction 32%

• Is the development of artificial intelligence good or bad for society?
  o   A bad thing:                        65%
  o   A good thing:                      34%