COLUMBUS (WCMH) — State Auditor Dave Yost says he’s been a Republican long time, but he will not support Donald Trump if he wins the GOP nomination.

Yost made the announcement early Monday afternoon on his personal Facebook page.

“I’ve voted Republican all my life,” the post starts. “But if Donald Trump wins the nomination of the Republican Party, I will break ranks with my party and will not support him.

“Every political candidate has flaws, because they are human. Mr. Trump is not merely flawed — his thirst for power at any cost makes him unfit for public trust.”

Yost already endorsed Ohio Gov. John Kasich for the Republican nomination. He says he “cannot support a man who will change any belief and associate with any evil in order to gain power, or who will use the power of government to silence his critics, or who is dismissive of people he doesn’t like.

“If Mr. Trump becomes the GOP nominee, I won’t be welcome in Cleveland this summer when my party holds its convention.”

Yost isn’t the first Republican to announce he won’t support Trump. On Sunday, US Sen. Ben Sasse of Nebraska also announced on Facebook that he too would “break ranks” and not support Trump in the general election. Sen. Sasse added that he hopes conservatives will find a third option in a “hypothetical match-up between Mr. Trump and Mrs. Clinton.”