The Federal Elections Commission is raising questions about last-minute expenditures by a pro-Donald Trump super political action committee that has already acknowledged making mistakes regarding the sources and amounts of its contributions and whose contributors include an L.L. Bean heiress. The FEC contends the Making Maine Great Again PAC may have violated rules that give PACs 24 hours to report expenditures of $1,000 or more in the two to 20 days before an election.