Former Starbucks CEO Howard Schultz rejected Democratic complaints that his Independent 2020 campaign will guarantee President Trump’s re-election, and said Democrats themselves will guarantee a Trump victory by nominating a “radical left” nominee.

“The stakes are too high to cross our fingers and hope the Democratic Party nominates a moderate who can win over enough independents and disaffected Republicans, and even fellow Democrats, to defeat Trump next year,” Schultz wrote in a blog post Monday. “That any opponent can oust Trump, no matter how far to the radical left they are, is a fallacy.”