Senate Majority Leader John Thune (R-SD) is proposing a clamp-down on ballot harvesting, a move that could help ease tensions with the White House over his inability to pass the Safeguarding American Voter Eligibility Act.

The majority leader said harvesting, the process of collecting ballots and delivering them to polling sites, was a “real problem” that needed to be addressed when asked Wednesday whether Republicans would add a ban on voting by mail to the SAVE Act, as Trump requested earlier this week.