I’m guessing she threatened to take away his donut breaks.
And he just snapped.
probably just mentioned his interest in voting for mitt, and some democrat decided to claim he said something entirely different.
In any-case I don’t care what he said or didn’t say because whatever it was he not only had the right to say it but he obviously did not say it to her and therefore it could not be a threat either. Might as well have been idle or angry speak. Nobody can take that seriously unless you truly are a jackass.