Former South Carolina Governor and Representative Mark Sanford (R) has announced a primary challenge against President Trump. This could have been valuable, except that instead of challenging Trump on the basis of his rank bigotry -- which Sanford is actually decently positioned to tackle -- he's focusing his campaign on the national debt. Seriously.
The one benefit of a Sanford challenge (and his inevitably mauling) is that it does give a clean resolution to the "it's not that I like Trump's rank bigotry, I just think Democrats are profligate spenders and I couldn't bring myself to vote for them" narrative:
"So then you'll vote for a Republican alternative who focuses on fiscal responsibility and doesn't carry Trump's bigoted baggage?"
"Hell no. #MAGA2020!"
(Of course, this perhaps assumes that Republicans will even allow a primary challenge to Trump which -- well, let's just say not all states are onboard with that).