Lawrence Wilkerson, the former chief of staff to Secretary of State Colin Powell, skewered Mitt Romney’s foreign policy team on Monday, saying their policies make his stomach turn.

Wilkerson took particular aim at John Bolton, former President George W. Bush’s ambassador to the United Nations—and now an adviser to Romney.

“The man scares me to death,” Wilkerson, a retired U.S. Army colonel told MSNBC’s Ed Schultz. “He would defeat all the enemies in America and the world—and believe me they’re plentiful—and he’d do it with everyone else’s blood. John is like Dick Cheney, never served a day in his life and wouldn’t serve a day in his life … These people make me sick.”