I don't know if they'll be able to beat that one, though the allegation of a terrorist fist bump and a call for the assassination of the presidential candidate also by Fox News correspondents are almost as low.
I've found a video of the fist bump though not of E. D. Hill's, lame brain assertion that it was some kind of terrorist symbol.
Report on Fox News and the 'baby mama" incident is at NYT Fox Forced to Address Michelle Obama Headline
I think that Fox is getting desperate.