be on the warpath

Trump advisers were predicting that Trump would be on the warpath at a “Make America Great Again” rally in Grand Rapids, Michigan, on Thursday night, his first major appearance since the Mueller investigation concluded.

“Mom’s gonna be on the warpath at any moment.”

Fehrnstrom must be on the warpath.

“If they strike down the law, Obama is going to be on the warpath,” Powe said.

On foot, we are at the mercy of any prowling rascals who may be on the warpath.