This one is in the top three intentional media lies so far this year.  It’s also brutally obvious  (National Review caught it):

MSNBC’s Thomas Roberts used a portion of Joe Biden’s speech at the dedication of a plaque recognizing the Americans lost in the Benghazi attack in order to make the case for gun control. Biden spoke about the risks State Department employees encounter overseas and the sacrifices families make: “No child should predecease their parents and noone should have to suffer the loss of their spouse, it’s not easy,” he said.

Replaying those remarks, Thomas Roberts claimed Biden was mourning “children as the victims of gun violence” noted that the vice president is set to make a new push for gun control. (link)