Republicans in Congress are staking out their positions ahead of Wednesday's joint session to certify the Electoral College results.
Some members are throwing their support behind Trump-backed challenges to votes in states President-elect Joe Biden won and others are warning of the dangers of such an extraordinary effort to essentially overturn the presidential election.
The Wednesday showdown in the Capitol, which could bleed into Thursday or even beyond depending on how long Trump allies in Congress try to drag it out, will set up the ultimate loyalty test to the president for Republicans.
Do they back Trump's unsubstantiated claims to the bitter end or do they break with the president, potentially leading to a Trump-backed primary.
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