Donald Trump is taking aim at business leaders, saying they should be fired if they don’t support him.

In two long Truth Social posts on Tuesday quoting a Wall Street Journal article, Trump said “Business Executives and Shareholder Representatives should be 100% behind Donald Trump! Anybody that’s not should be FIRED for incompetence!”

Lately, Trump has attempted to line up the CEO and executive crowd behind him, but this is the first time he seems to have openly threatened them. Last week, he met with at least 80 CEOs, promising tax cuts and scaled-back business regulations if he’s elected president. Accounts of that meeting did not have the convicted felon and former president coming off well, with Trump reportedly rambling all over the place on different topics.

“These were people who, I think, might have been actually predisposed to him,” said CNBC’s Ross Sorkin. “And [they] actually walked out of the room less predisposed to him, actually predisposed to thinking ‘This is not necessarily—’ as one person said, ‘this may not be any different or better than a Biden thought, if you’re thinking that way.’”

Trump also proposed a plan to cut the federal corporate tax rate to 20 percent from 21 percent, which didn’t bring a lot of excitement from the audience. One attendee described the idea as “We’re going to give you more of the same for the next four years.”

Previously, Trump also tried to win over the support of oil and gas executives, reportedly promising them changes in policies if they contributed to his campaign.

Perhaps Trump’s recent posts came about because these meetings aren’t getting him the support he was seeking, and he sought to strike back at the CEOs. Maybe he thought they didn’t like his idea of leaving worker tips untaxed. Or maybe he got tired of proposing outrageous deals in exchange for total support, and decided an implicit threat would work better.

Whatever the case, it’s not likely that the richest and most powerful business leaders in America will respond kindly to Trump saying “support me or else!” Even if they do support him, history doesn’t look kindly upon business leaders who throw their support behind (wanna-be) dictators and autocrats.