A former GOP speechwriter is considering voting for a Democratic candidate in the general election over Republican presidential front-runner Donald TrumpDonald TrumpChaffetz: Threats against lawmakers should be taken seriously Warren cautions Dems against infighting CIA director: Leaks 'seem to be on the increase' MORE.

Ben Stein, a conservative economist, said he's never voted for a Democrat before — adding that he'd like to see a Republican in office — but called the front-runner "dangerously misinformed" and said he would "sink" the party.

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"I like him, but he’s dangerously misinformed," he said on CNN on Wednesday.

Stein said he went to law school with Democratic presidential candidate Hillary ClintonHillary Rodham ClintonTrump: 'Why no action' from Obama on Russian meddling? Trump notes 'election meddling by Russia' in tweet criticizing Obama Former Obama advisor calls Fox ‘state sanctioned media’ MORE, adding he's always had a "kind of fondness for her."

“She was always a very nice young woman,” Stein said.

He also said he admired her rival Bernie SandersBernie SandersGOP at decisive moment on Planned Parenthood Chaffetz: Threats against lawmakers should be taken seriously Assange bashes Dems: The party ‘is doomed’ MORE's single-payer national health plan.

“When I worked for Mr. Nixon as a speechwriter, I wrote the message that sent up Mr. Nixon’s proposal for single-payer health plan,” he said.

Stein said he liked Ted CruzTed CruzGOP at decisive moment on Planned Parenthood Trump: ‘I cannot imagine’ GOP senators don’t back healthcare bill Trump making calls to senators on healthcare bill MORE and "loved" Marco RubioMarco RubioWill Republicans stand up to the NRA's insurrection rhetoric? The Hill's Whip List: Senate ObamaCare repeal bill Ivanka Trump turns to House GOP on paid family leave MORE. But he added Rubio is "hanging an albatross around Mr. Trump's neck that doesn't deserve to be there," referring to criticism over David Duke and The Ku Klux Klan.

“Mr. Trump definitely did disavow the Ku Klux Klan and to say otherwise is simply not true,” Stein said.

"If I could just snap my fingers and have anyone it would be Marco Rubio," he said. "But I think he's been a little bit disingenuous lately."

He also called New Jersey Gov. Chris Christie a very capable governor but said he made a poor decision in his endorsement of Trump.

"I think he made a mistake getting on the Trump bandwagon, and I just hope that bandwagon does not drag the whole party out to sea and sink us," Stein said. 

"I'm afraid that's what's coming down the road."