Proving once again that the Democratic Party has left him behind, former Starbucks CEO Howard Schultz is criticizing one of the party’s newest obsessions. Naomi Lim of the Washington Examiner explains.

Possible independent presidential candidate and Democratic spoiler Howard Schultz on Tuesday dumped on Rep. Alexandria Ocasio-Cortez’ “Green New Deal,” warning it would be “immoral” to spend trillions of dollars on an “unrealistic” solution.

The billionaire former Starbucks CEO and executive chairman urged Democrats to be “truthful” about their environmental initiatives rather than just throwing policies “against the wall because it’s a good slogan.”

“I read that by 2030 they’re suggesting that every building in America becomes clean energy, conforms to clean energy, just to put that in perspective, because it’s not realistic, that would mean that between 2,000 and 3,000 buildings a day would have to be reconstructed to conform to what they’re saying,” Schultz said. “So let’s be sensible about what we’re suggesting,”

Schultz’ comments are likely to further raise tensions between him and Democrats running against Trump. Several Democrats have said Schultz’ candidacy would only split the anti-Trump vote and help Trump win re-election in 2020.

Schultz pledged that he would drop out if it becomes clear he can’t win and that his campaign is only helping Trump, but said it’s too early to make that assessment.