His administration violated a judge's order on the 2020 census and could be held in contempt. And in the heat of a presidential campaign, that track record only adds to anxiety about whether Trump will abide by the results of the election. Beyond election law, government watchdog groups have been tracking a raft of other examples where they allege that Trump is flouting laws. Special counsel Henry Kerner, a Trump appointee, recommended that Trump adviser Kellyanne Conway be fired after repeated violations, but the White House ignored that. “If he is taking money from foreign governments without congressional consent, he is violating the Constitution,” said Potter, a former chairman of the Federal Election Commission.

The aides include Betsy DeVos, the education secretary who has permanent absentee voting status in her home state of Michigan. Two other senior Trump campaign officials chief operating officer Michael Glassner and deputy campaign manager Bill Stepien have repeatedly voted by mail in New Jersey. Tim Murtaugh, the Trump campaign's communications director, defended the Trump aides who have voted by mail. Yet its unclear if he traveled to San Antonio, where his presence would have disqualified him from voting absentee. Glassner and Stepien have both voted repeatedly by mail in New Jersey, where Glassner has voted absentee four times since 2016.