 He's calling on the president to show he can lead the ticket by engaging voters in unscripted settings. Or he should step aside. If Biden bows out, Merkley wants to see a vetting process for the party to choose a new nominee. Give folks who want to step forward a chance to do so. Maybe through some type of initial round of balloting and then have the top three candidates or so present their case at the national convention. He says he's counting on the president to do the right thing for the future of the country.