The President’s fantastical allegations about “illegal ballots” are being indulged by quite a number of prominent Republicans in Washington, who have declined to acknowledge Joe Biden as President-elect. If Republicans in some key state legislatures go further and appoint electors who disregard their states’ popular votes, the electoral chaos would be disastrous. To understand how the politicians may proceed, David Remnick spoke with Jane Mayer, who has written extensively about today’s GO.P. and the forces that drive it.