A "big red boxer" jumped Gov. Brian Schweitzer's border collie, Jag, on Wednesday evening during a walk on Montana State University's campus, the state's top official confirmed Thursday.

Schweitzer said he was walking Jag southeast of the Brick Breeden Fieldhouse when another dog jumped on top of him and bit him.

Schweitzer, a Democrat, questioned whether the offending dog might have been a Republican or a member of the tea party.

Jag, the governor's frequent companion, was a little shaken up by the incident, Schweitzer said, but no skin was broken. He said Jag is resilient, like his owner.

"I've been bit pretty hard by Republicans, but I always get back up," he said.

The governor was on the MSU campus for the opening ceremonies of the Special Olympics Montana State Summer Games.

Amanda Ricker can be reached at aricker@dailychronicle.com or 582-2628.