CHICAGO (AP) — Two Illinois Republicans considered among the nation’s most vulnerable congressional incumbents are breaking from their party and Donald Trump to advocate for new laws that would include a path to citizenship for people living in the country illegally.

Rep. Bob Dold and Sen. Mark Kirk spoke at an event Wednesday in Chicago. They argued comprehensive immigration reform would help the economy, ensure companies have the workers they need and is the right thing to do.

Dold’s Chicago-area district is home to large numbers of Hispanic voters and Fortune 500 companies.

Immigration has been a tricky issue for Republicans as the electorate has grown more diverse. That’s particularly true in Illinois, where lawmakers recently approved driver’s licenses and extended health care for some immigrants in the country illegally.