Congressman Michael Grimm of New York, everybody! Sarah Wheaton at the New York Times says:

Mr. Grimm can be heard telling Michael Scotto, a reporter for NY1, “I’ll break you in half” in footage broadcast by the network. Moments earlier, Mr. Grimm had walked away from an interview when Mr. Scotto began asking him questions about allegations of campaign finance violations.

According to a transcript provided by NY1, Mr. Grimm also threatened to throw Mr. Scotto off a balcony.

Here's video:

Merry State of the Union to all, and to all a good night!