fire in belly

“I had to take a good look to see if I had enough fire in belly or gas in the tank,” Perlmutter said after Polis’ announcement.

“Sanders’ role was really to put a lot of fire in belly of Democratic activists which is what he’s done and bring people to the caucuses that would not have attended if he wasn’t in the race,” said Jack Hatch, the Democratic nominee for governor in Iowa in 2014.