But Democrat supporters are backing Biden after a video went viral. One supporter, Josh Fields, said: “Biden’s age is concerning, but he’s very obviously looking for the floor marker for the camera shot.

“They’ll usually place a piece of tape on the ground. They do this in movies, plays, TV, pressers, etc. I’ve seen other actual concerning things, this isn’t one of them.”

Even though his team tries to protect him, polls show that lots of people worry if Biden, who is quite old, can handle being president. A huge 86 percent of Americans think he’s “too old” and 62 percent say the same about Donald Trump, who is also 77.