They may not even need to go nuclear. Every Democrat up in 2018 from a state that voted for Trump, or even narrowly voted for Clinton, will be under serious pressure to switch sides.
Agree. Do it now. Get it over with!
Going Nuclear may not be such a wise option. Given the many people who did not vote in 2016, it could fire up the anti-Trump vote in 2018 and 2020, and then the Republicans would have to deal with a Democrat simple majority and no 60% rule to temper excesses.