Bush: Trump 'trying to insult his way to the presidency'

Jeb Bush said Thursday that Donald Trump's message is too negative for the long haul, including the businessman's criticism that Bush should stop speaking Spanish on the campaign trail.

"I think Donald Trump is trying to insult his way to the presidency, and it's not going to work," Bush said on ABC's Good Morning America. "People want an uplifting hopeful message."

Bush, whose campaign in recent days has stepped up its criticism of the front-running Trump, spoke a day after the New York billionaire questioned his bilingualism.

“I like Jeb,” Trump told Breitbart News. “He’s a nice man. But he should really set the example by speaking English while in the United States.”

Bush dismissed Trump's argument, saying that "people come to this country to pursue their dreams, sometimes they start without speaking English but they learn English and they add vitality to our country."

In the ABC interview, Bush echoed previous comments that Trump is not conservative enough to represent the Republican Party, citing his past positions on taxes and health care.