Just floating an idea. The last President that was a Senator was LBJ. He kind of won in 64 cause the Nation was still in morning so he got that one by default.
Not a McCain supporter, but do you think the reason they have such a difficult time with their “baggage?” Their voting record in the house of compromise?
Lincoln was perhaps the least qualified in terms of prior public service. He served one term as a Congressman from Illinois.
Senators rarely win. Unfortunately it seems inevitable this year.