Former White House chief strategist Steve Bannon and a handful of President Trump’s most vocal supporters will visit two Midwest cities next week to call on Americans to donate money to an organization that wants to build a barrier along the U.S.-Mexico border.

Bannon, former Kansas Secretary of State Kris Kobach, former Milwaukee County Sheriff David Clarke, and failed wall crowdfunder Brian Kolfage have teamed up to host “We Build the Wall Town Hall” events in Ohio and Michigan next week.