I thought about that too. The only problem with that theory is that the actor who played Palmer was on TV complaining that his character was killed off. LOL
Dueling scandals. Logan behind Palmer's death. VP working with terrorists to unseat Logan. Writers have weaved two plots in such a way that they look related, but aren't.
Now some may not give him credit for being concerned about the assassination of a fictional President on TV, but I think I agree with him. It wouldn't take much for some nut to attempt to do it and then claim that he got the idea from a TV show!