Republicans favor former Secretary of State Condoleezza Rice for Mitt Romney's running mate, according to a survey released Wednesday by Fox News.

The former George W. Bush Administration official was the pick of three in 10 Republicans, leading Sen. Marco RubioMarco Antonio RubioFlorida senators pushing to keep Daylight Savings Time during pandemic Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Intelligence chief says Congress will get some in-person election security briefings MORE (R-Fla.), the favorite of 19 percent of those surveyed; New Jersey Gov. Chris Christie, the choice of 8 percent; and Rep. Paul RyanPaul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.), who garnered 8 percent.

Speculation has swirled around Rice since a story was posted to the Drudge Report last week that said she had become a front-runner in Romney's search for a running mate.

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On Wednesday, Romney told a town-hall audience in Ohio that he had not yet picked a vice presidential candidate, but his eventual choice would be a "conservative."

"I can assure you that even though I have not chosen the person that will be my vice president, that person will be a conservative; they will believe in conservative principles," Romney said.

Some Republicans have argued that Rice's support for abortion rights should disqualify her from being on the ticket. Romney has said he would pick a running mate who opposes abortion rights.

Of late, the majority of vice presidential speculation has centered around former Minnesota Gov. Tim Pawlenty, Sen. Rob PortmanRobert (Rob) Jones PortmanRomney undecided on authorizing subpoenas for GOP Obama-era probes Congress needs to prioritize government digital service delivery House passes B bill to boost Postal Service MORE (Ohio) and Louisiana Gov. Bobby Jindal — but none of the three cracked double digits among the Republican voters surveyed by Fox. 

Jindal was the most popular, earning 5 percent of those surveyed, while Portman was the choice of 3 percent of voters and Pawlenty a mere 2 percent.