But that all changed this past weekend, when a super PAC backing Bush released a TV ad questioning Kasich’s conservative credentials. Kasich’s official campaign sent out anti-Bush emails and tweets and posted the “Sinking Jeb” ad online.

.@JebBush couldn’t fix healthcare, so he made low-income families pay more. #Kasich4Us #nhpolitics #FITN pic.twitter.com/8enEpQtmMJ

— John Kasich (@JohnKasich) January 22, 2016

Meanwhile, Kasich has continued to portray himself as an optimist looking to transcend political infighting.

“I believe that all of us are capable, one way or another, of changing the world,” Kasich said Saturday in New Hampshire. “That's what we’re here for. To make this world a little better place.”

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