The Republican National Committee (RNC) has moved a portion of its spring donor retreat program to former President Donald Trump’s exclusive Mar-a-Lago club, according to a Republican attending the events and a letter from the committee’s chief counsel. The move is a sign of Trump’s enduring and expanding clout within the Republican Party. The president was largely hands-off with the RNC while he was in the White House. That dynamic is changing as Trump gears up to reshape the party’s representation in the House and Senate via the 2022 election. News of the move to Mar-a-Lago surfaced during a tiff between Trump and the RNC over the committee’s use of his name and likeness to raise funds. The RNC’s standard operating procedure is to back Republican incumbents and that includes the 10 GOP House members who Trump has vowed to defeat over their vote to impeach him. Trump sent cease-and-desist …