Mitch McConnell looks like he was frozen during a news conference and was escorted away from cameras after people came to help him. He was able to return to the podium a few minutes later, but this video was very weird and somewhat scary for someone his age. NBC News reported on the details of Mitch McConnell freezing at the podium during the news conference. The report said:

Senate Minority Leader Mitch McConnell suddenly stopped speaking during a weekly Republican leadership news conference Wednesday afternoon, appearing to freeze, and then went silent and was walked away.
McConnell, R-Ky., had been making his opening remarks about an annual defense policy bill when he stopped talking. His Republican colleagues asked if he was OK, and Sen. John Barrasso of Wyoming, a top McConnell deputy who previously worked as a physician before serving in Congress, escorted McConnell away from the cameras and reporters.
Sen. Joni Ernst of Iowa made a sign of the cross as if she was praying for McConnell