Conservative author David Frum, a speechwriter for former President George W. Bush, announced Wednesday that he cast an early vote for Democratic presidential nominee Hillary Clinton.

“To vote for Trump as a protest against Clinton’s faults would be like amputating a leg because of a sliver in the toe; cutting one’s throat to lower one’s blood pressure,” Frum wrote in an editorial for The Atlantic Wednesday.

{mosads}Frum has been a fierce critic of Clinton’s but admitted last month in a separate editorial that he was struggling to make a decision between Clinton and his own party’s nominee.

“Trump is a man without political ideas. Trump’s main interest has been and will continue to be self-enrichment by any means, no matter how crooked,” Frum wrote in the Wednesday op-ed titled “The Conservative Case for Voting for Clinton.”

Throughout the 2016 campaign, Frum has pointed out Trump’s ability to seize on issues important to Republican voters, but he concluded that he had to “act decisively before it’s too late” in his vote for Clinton.

The Atlantic contributor said he has “no illusions” about Clinton but insisted she is a patriot who “will uphold the sovereignty and independence of the United States.”

“I do not imagine that she will meet me, or those who think like me, anywhere within a country mile of half-way,” he wrote of Clinton.

“Your hand may hesitate to put a mark beside the name Hillary Clinton. You’re not doing it for her. The vote you cast is for the republic and the Constitution,” he said.