An Open Letter to Senator Joe Manchin

President Barack Obama and Sen. Joe Manchin, D-W.Va. walk down the stairs of Air Force One upon their arrival at McLaughlin Air National Guard Base, Wednesday, Oct. 21, 2015. Obama is in Charleston, W.Va., to lead a community discussion on prescription drug abuse and heroin epidemic. (AP Photo/Pablo Martinez Monsivais)

(Background here if you missed Morning Joe, as you always should.)