John Kasich, the former governor of the state of Ohio, and a trio of other former top Republicans made the case for members of their party breaking with Donald Trump and backing Joe Biden on Monday, arguing that the President has been a “disappointing” and “disturbing” failure, CNN reports.

Kasich headlined the section of the Democratic convention focused on convincing Republicans turned off by Trump to vote -- even reluctantly -- for a candidate that they may not wholeheartedly support.

Kasich said he was “proud” of his Republican heritage, but that Trump’s first term “belies those principles.”

“I’m sure there are Republicans and Independents who couldn’t imagine crossing over to support a Democrat,” Kasich said. “They fear Joe may turn sharp left and leave them behind. I don’t believe that because I know the measure of the man. It’s reasonable, faithful, respectful, and, you know, no one pushes Joe around."

Three Republican women -- Meg Whitman, who ran for governor of California as a Republican in 2010 but backed Hillary Clinton in 2016; Susan Molinari, a former Republican congresswoman from New York; and Christine Todd Whitman, former Republican governor of New Jersey and EPA chief under George W. Bush -- joined Kasich in backing Biden.

“For me, the choice is simple. I’m with Joe,” said Meg Whitman.

Molinari said she had “known Donald Trump for most of my political career. So disappointing, and lately so disturbing.”

And Christine Todd Whitman encapsulated the segment with an honest question.

“What am I doing here,” she asked, adding later, “This isn’t about a Republican or Democrat. This is about a person.”

John Kasich headlined the section of the Democratic convention focused on convincing Republicans turned off by Donald Trump to vote -- even reluctantly -- for a candidate that they may not wholeheartedly support.

(Democratic Convention) 'Proud' Republican Kasich sides with Joe Biden