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%.