An aide to Massachusetts Senate candidate Elizabeth Warren, a Democrat, appears to have knocked the video camera of a Republican tracker after an event this weekend in Martha's Vineyard. Watch the video below:

The Republican staffer holding the camera films Warren leaving the event and entering her SUV. One of Warren's aides, who looks to be, perhaps, her driver, pushes the camera twice, and the second time it falls to the ground. The tracker picks up the camera and continues filming, while the Warren staffer says, "Dude, get out of my face or I'm going to call the police."

"It's a public event," the Republican staffer says multiple times. Finally, as he's walking away, the Warren staffer says, "You're messing with the wrong people."

This isn't the first time a Massachusetts Democratic Senate candidate staff member has roughed up someone on the trail. In 2010, WEEKLY STANDARD staff writer John McCormack was knocked down on a Washington sidewalk by Democratic operative Michael Meehan while McCormack attempted to ask Senate candidate Martha Coakley a question.