The problem has gotten worse since Trump left the White House, advisers say. The former president’s team has long pushed back on candidates they accused of misrepresenting themselves as Trump-backed: Last year alone, the Trump campaign sent cease-and-desist letters to the likes of attorney general-turned-Alabama Senate candidate Jeff Sessions and even contenders for local office. But now, without a comprehensive state-by-state network of operatives and chairpersons that can patrol races, the former president’s political team has to work harder to keep candidates in line... A few weeks earlier, Miller swatted down Pennsylvania state Sen. Doug Mastriano, a prospective gubernatorial candidate who had asserted in a radio interview that Trump had “asked” him to run and that the ex-president had told him, “‘Doug, run and I’ll campaign for you.’” Miller shot back that Trump “has not made any endorsement or commitments yet” in the contest. Trump aides have grown aggravated by Mastriano, partly because of his willingness to reveal private conversations with Trump. Mastriano, who has loudly echoed the former president’s baseless assertions that there were irregularities in the 2020 election, has talked publicly on at least four occasions about his discussions with Trump regarding the gubernatorial race.