Jeb Bush: 'I'm not quitting'

Republican presidential candidate and former Florida Gov. Jeb Bush said Tuesday that he was not quitting the 2016 GOP race, despite his lackluster performance in several recent polls.

GOP rival Donald Trump said early Tuesday that Bush should do what Wisconsin Gov. Scott Walker did and "absolutely" drop out. But when asked on CNN whether he was quitting the race, Bush immediately pushed back.

"Ha, no. I mean, do we have to talk about Donald Trump? No. I'm not quitting," Bush replied Wednesday morning on CNN's "New Day." "He's entertaining. He's fun. He says really funny things in the breaks, in the debate. But I'm running for President of the United States, and it's a serious endeavor."

He continued: "I know how to win. I've done it. I actually know how to govern, which is going to be an attribute as we get closer to the election."