OK . . . so there are other factors too, but the Dow Jones dropped 2% today (257 pts) on the heels of two populist candidates winning the Iowa caucuses.
I report . . . you decide.
Update: I was watching Kudlow & Company from yesterday on my DVR (OK, so I'm a nerd) and this same question/idea was presented to the panel by Kudlow. Kudlow himself seemed to think there was an effect as did 2 of the 3 people on the panel he presented the question to. So whoever in the comments called me a "dolt" for suggesting such might need to look in the mirror.