Harris was the choice, but she has no public relation skills. Washed out of the primary before Iowa.
Joe was last man standing to stop Bernie, and would pull Harris into the VP spot, but he came with the risk of exposing things through gaffes, therefore had to be scripted up the ass.
Not sure why he was forced to make a physical appearance at the G7, though. The scripting became obvious and he still fucked it up.
Putin's at the plate now, and the bullpen is empty. Bidan has to pitch to him.