A former Donald Trump adviser fired over his racially charged Facebook posts endorsed Sen. Ted Cruz’s (R-TX) bid for the Republican presidential nomination on Monday.

In an exclusive in Politico’s Playbook, Sam Nunberg, billed as a “fired Trump aide, frequent reporter-whisperer, and available pundit (lives on Upper East Side)” slammed the billionaire real estate mogul for not having “a coherent political ideology.”

“If anything, I would describe him as a Chris Christie Republican,” Nunberg told the newsletter. “I was concerned but I figured that he would bulk up on policy…He has not. I do not see a candidate who takes these issues seriously.”

Nunberg, who was fired last summer over posts calling President Obama a “Socialist Marxist Islamo Fascist Nazi Appeaser” and using the N-word in reference to Rev. Al Sharpton’s daughter, told Playbook Trump’s failure to denounce an endorsement from former KKK leader David Duke was one of his “last straws.”