>> tucker: good evening and welcome to "tucker carlson tonight." not to brag about we are coming to you from iowa. we will explain why in just a minute. here's an interesting story, ronnie jackson as a physician. he joined the white house medical unit many years ago under president george w. bush. he stayed in that job and went on to serve as physician for two subsequent presidents. ronnie jackson knows a lot about what it takes to run the country. during the 2020 presidential campaign jackson was up sell at home watching joe biden deliver a speech. what he saw joe biden say about that him deeply as a physician. he just announced he was candidate for u.s. senate. watch. >> i'm here to ask you for help. where i'm come from you don't get far unless you ask. my name is joe biden, i'm a democratic candidate from the united states senate. >> tucker: ronnie jackson's all that and then went on twitter and made the obvious point, joe biden before this goes any further should undergo a...