They give money to run ads for the most insane GOP people so they can have easier opponents, they wanted Trump to win the primary because it would have made the GOP a laughingstock. Problem is over time this emboldens and normalizes this faction, and now it’s just this death spiral where they can’t change or the other faction will win, it’s like this logical inevitability at this point. Dems said it loud and clear in 2016 they will choose a candidate friendly to donors over one that could easy win against Trump.