Trump: Ben Carson Doesn’t Have the Experience To Be President (VIDEO)

Trump: It's not his thing, he doesn't have the temperament and just doesn't have the experience.

Trump also tells Stephanopoulos that Marco Rubio is 'overrated' and that Jeb Bush should do what Walker did and drop out

The ABC GMA interview above comes one day after a new NBC/WSJ poll showing Trump now behind Ben Carson nationally

via CNN: Ben Carson is ahead of Donald Trump in the Republican presidential race, a new national poll shows.

The retired neurosurgeon has 29% support compared to Trump's 23%, according to an NBC News/Wall Street Journal survey released Monday night.

The two are followed by Florida Sen. Marco Rubio at 11%, Texas Sen. Ted Cruz at 10% and former Florida Gov. Jeb Bush at 8%.