"The View" host Joy Behar on Friday took a swing at President-elect Donald TrumpDonald John TrumpAppeals court OKs White House diverting military funding to border wall construction Pentagon: Tentative meeting between spy agencies, Biden transition set for early next week Conservative policy director calls Section 230 repeal an 'existential threat' for tech MORE, questioning why the country should have to support Trump now that he's been elected.

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“Why do I have to be so nice?” Behar asked on "The View."

“I do not forget what he said when he was campaigning."

Other panelists challenged Behar during a discussion which celebrities would sing at Trump’s inauguration in January. They suggested whomever the singer will be could serve as a symbol of unity after a “divisive election.”

“He targeted every group,” Behar responded.

Asked about the country coming together after President Obama's 2008 election even though many still opposed him, Behar insisted the circumstances were different.

“If they didn’t like Obama, it was about his politics,” she said. “This guy [Trump] is about what he said.”

Behar, a vocal opponent of Trump throughout the election, said she would continue to be a voice for the “more than 2.5 million people who voted for Hillary ClintonHillary Diane Rodham ClintonHillary and Chelsea Clinton to host series based on their book 'Gutsy Women' Democrats see spike in turnout among Asian American, Pacific Islander voters Biden officially announces ex-Obama official Brian Deese as top economic adviser MORE” over Trump.

Despite pushback from the other panelists, Behar wouldn’t budge.

“I will be the thorn in his side as long as I breathe air until that guy [EPA nominee Scott Pruitt] destroys the environment.”