Like every American president before him, Donald Trump has sworn "to preserve, protect and defend the Constitution of the United States".
But his opponents say he's been doing almost the exact opposite since he came to power.
Their hope is that by making it clear (be it through legal challenge, protest or the ballot box) that President Trump is indifferent to the responsibilities of his office and routinely flouts the various amendments enshrined in the Bill of Rights, they can use the constitution against him and bring his term in the White House to an early close.
So what are their chances of success? With the various strands of the anti-Trump "resistance" beginning to consolidate, Bob Abeshouse has been finding out.
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