If Trump's proven anything, it is that he is an off-the-charts opportunist. He is no more pro-life than he is a faithful Presbyterian. And you are absolutely right that he has burned his bridges with Republicans. If he is elected, you can expect obstruction of his agenda from all sides.

Besides, the dirty little secret in Washington is that very few in Congress expect Roe v Wade to ever be overturned -- or even, in their heart of hearts, want it to happen. They won't admit it, but they know overturning it would mean a return to back-alley abortion mills and a level of civil unrest and crime not seen since prohibition.