People way overestimate the impact of politics on the market as a whole, and the willingness of people to put their political views above their desire to stay invested over the long term will never cease to amaze me.
I know several people who throughout 2007-08 were very sanguine about the economy...thought the housing market difficulty was overblown and wouldn't lead to a crisis, remained fully invested, and even when it did end up leading to a crisis they saw it as a great buying opportunity. Many of these folks were relatively close to retirement and had more at stake than a 30-year-old with 30 years to make it back up. Then, when Obama won the election and took office, they all of a sudden got real cautious about the market, started calling for a double-dip recession, and started raising a bunch of cash right as the market bottomed. They were sanguine for something like 75 or 80% of the decline, then got real scared just as it was close to being over. I know of liberals who did the exact same thing when Trump won.
That logic is only surpassed in its stupidity by people who blindly short into uptrends, caused by their desire to be "right" more than a desire to make money.