A longtime Republican donor on Friday indicated behind closed doors that she would likely support Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE for president, according to ABC News.

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At a private summit Park City, Utah for conservative donors hosted by Mitt Romney, Hewlett-Packard CEO Meg Whitman reportedly compared Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE to Adolph Hitler and Benito Mussolini and, according to another donor that was present, asked why she shouldn’t support Clinton.

"She posed the question, 'Is it not reasonable to support Hillary Clinton?' given all the awful things Trump has said," donor John Chachas said, according to ABC.

When asked, Whitman said she was still uncommitted.

"I haven't made that decision," she told ABC.

"We’ll see, get to the conventions, see who the vice presidential picks are. And then I will make that decision."

Whitman has contributed hundreds of thousands of dollars to Republican candidates and causes over the years, according to Federal Elections Commission records.

During this election cycle, she contributed $205,000 to super-PACs allied with Chris Christie’s now-defunct presidential campaign. Christie has since endorsed Trump.

Whitman also gave $100,000 in March to a conservative super-PAC that opposes Trump.

Whitman ran for governor of California in 2010, winning the GOP nomination but eventually losing the general election to Jerry Brown.

Another donor who was at Romney’s retreat said it seemed likely Whitman will support Clinton, the presumptive Democratic nominee.

"I see Meg Whitman supporting Clinton, and I’m surprised about that. I love and respect Meg Whitman but, my gosh," said Scott Keller, who is supporting Trump.

Two other donors told ABC that an informal poll taken at the summit showed that attendees were evenly divided over which candidate to support.