 But as we heard in the news, President Joe Biden says he plans to stay in this year's presidential race. The pressure on him is mounting, though. Congressman Adam Smith has become the latest senior Democrat calling on Mr Biden to go. Those calls have been echoed by a group of business leaders and Democratic donors known as the Leadership Now Project. The group's CEO has been speaking to our North America business correspondent, Michelle Fleury, in New York. She explained to me just how influential this group is.