I remain unshaken in my confidence that, when Congress meets on Jan. 6 to perform its constitutional duty, it will properly announce Biden as the election’s winner.

The remaining questions are how many Republican senators will vote for Biden if the matter is put to a vote through challenges to slates of electors — and, more fundamentally, how many Republicans will forthrightly acknowledge the authenticity of Biden’s election.

There is no basis for denying this. Even the most conservative of election law commentators have joined the chorus to observe that courts don’t overturn elections without adequate evidence of invalid votes that actually made a difference in the outcome. The Trump campaign has provided no proof of that kind in any state, much less the three necessary to deny Biden an electoral college majority.

This president’s intransigence is having costly spillover effects. It is taking a toll on Republican voters’ confidence in the election results. It is causing the kind of corrosive behavior that occurred in Michigan, where the Wayne County canvassing board split 2-2 over certifying its vote tallies, despite it being obvious that Biden has won the state by a margin more than 10 times Trump’s 2016 win. The two local Republicans quickly came to their senses, but not before Team Trump tweeted about its “huge win” — and now it seems they to want to revert to rank partisanship.