I saw this when it happened a few months ago, but didn't notice that the stage hands were actually laughing at Texas State Senator Kirk Watson when he couldn't name a legislative accomplishment of Barack Obama. He was given a number of opportunities with the last one ending in chuckles.
All he could say was "Hope". As in "I Hope this doesn't get on the youtubes."
Too late Senator.
BTW. Senator Watson is now the co-chair of the Texas Democratic convention.