All the people Trump has called "dumb as a rock"

President Trump is quite a fan of calling people "dumb as a rock," having used the insult against nearly a dozen people on Twitter over the past few years.

The full list of Trump's targets: Rex Tillerson, Mika Brzezinski, Don Lemon, Glenn Beck, Rick Wilson, Chris Matthews, Bill Maher, Jonah Goldberg, Bryant Gumbel, Jay Leno, Touré, Jeb Bush.

Go deeper: Trump's "Pocahontas" power play