How long will Democrats hold onto the idea of Russian collision?
It does make them feel better.
The idea that Trump colluded with Russia to defeat Hillary Clinton was appealing to many Democrats in the same way any conspiracy theory appeals to the confused: It seemed to explain the inexplicable, with paranoia providing enough elasticity to gloss over any plot holes. The theory's most attractive feature was the near-impossible task of debunking it.
And few realities were more confusing than Trump's win via victories in key Democratic states like Wisconsin, Pennsylvania, and Michigan, all of which went Republican for the first time in decades. How could an uncouth loudmouth like Trump defeat a polished professional like Clinton? Divine intervention — or at least some sort of outside intervention — was the only answer. Real Russian efforts to undermine confidence in the election only fed this confusion.