Renegade Republicans intent on upending President Trump in 2020 are keeping their powder dry, waiting to see if legal and political controversies drive him from office first.

Political operatives and potential candidates that inhabit the loose-knit community of Republicans who oppose Trump’s re-election are eyeing June as the approximate moment for deciding on a primary challenge or independent bid. It’s a strategic delay. Some Republicans think the weight of multiple investigations could motivate the president to exit the White House after one term — especially if special counsel Robert Mueller issues a politically damaging report.