Do you know why Russians never smile in photos? It's because they think people who smile in photos are idiots. The same applies to people who add an ROFL or an LOL to the end of their messages when they have nothing of any value to add to the conversation and just hope to ROFL or LOL their way through.
If you are pessimistic about the next 4 years, you may want to adjust your stocks for more cash reserves and/or rebuy into necessity stocks (food, utilities, etc)
Interestingly, the Wikipedia article notes good stock market returns under Rep. President + Rep. Congress. So take it or leave it.