The Weekly Standard's John McCormack has a way with special elections.

McCormack, who you might recall led Dede Scozzafava's campaign to call the cops on him, is now at the heart of a dustup in Massachusetts.

Video shows McCormack taking a spill into a metal railing while chasing after Martha Coakley in Washington last night, then being helped up by a man who begins to impede McCormack's pursuit.

The man asks for McCormack's credentials on what appears to be a public street, physically blocking his path while McCormack strains to show his congressional press pass and move on.

McCormack says the man shoved him into the railing. He also has a suspect: Democratic consultant Michael Meehan.

Meehan was dispatched to the race by the Democratic Senatorial Campaign Committee (DSCC), according to the AP. A picture from the incident appears to back up McCormack's claim that it was Meehan.

The DSCC and Meehan could not immediately be reached for comment.

UPDATE 10:54 a.m.: Democrats will try to play this as if McCormack is stirring up trouble -- again.

DSCC spokesman Eric Schultz: “It is no surprise that Washington Republicans are trying to use every dirty trick they have to throw the Coakley campaign off their stride, but we are determined to end this campaign talking about the issues that matter to voters, like creating jobs and lowering middle class taxes.”

Meehan responds to The Hill: "I'm trying to find a good number for John. I got voicemail at (his) office."