Panel Survey Shows Huge Movement to Trump After Comey Letter

The November edition of the panel survey done by the Institute for the Study of Citizens and Politics is out. Dan Hopkins tells us that it shows something interesting. A lot of people really did switch to Donald Trump at the last minute:

While no one moved from Trump to Clinton, 0.9 percent of our respondents moved from Clinton to Trump....Trump also outpaced Clinton among people who were previously undecided or third-party backers, with 3.1 percent of respondents moving from those categories to Trump while just 2.3 percent did the same for Clinton. Clinton also saw 3.1 percent of her October supporters defecting to third-party candidates or becoming undecided. Trump lost just 1.7 percent.

Let's add this up:

  • Trump gained 0.9 + 3.1 - 1.7 = +2.3 percent
  • Clinton gained -0.9 + 2.3 - 3.1 = -1.7 percent

The October poll ended on the 24th. FBI Director James Comey released his infamous letter on the 28th. The November poll then showed Hillary Clinton with a net loss of 4 percent compared to Trump. This compares to net movement of only a few tenths of a point in the final days of the 2012 election.

I wonder if there's any relationship there?