Jeb Bush called his GOP presidential rival Donald Trump a "creature of Barack Obama" in his latest attack on the wealthy reality star and businessman.

"But for Barack Obama, Donald Trump's effect would not be nearly as strong as it is," Bush said in an interview on NPR.

Speaking about the viability of his own campaign, Bush downplayed expectations that he must win early contests.

"The good news is, expectations are low for me, and I'm definitely gonna beat those," he said. "I feel really good about New Hampshire, to be honest with you. Just — just the way it — it feels."

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