“1968 was a tight election.”
Right - my bad.
Eisenhower’s VP vs Johnson’s VP makes for a tight race.
How often has a governor been beaten by a senator in the general? Romney. Anyone else?
Romney was running against a sitting POTUS. McCain - a senator - lost to Obama, then also a senator.The only senator ever to defeat a governor for POTUS was Warren G. Harding in 1920. The governor he beat was, ironically, from the same state that Harding was from - Ohio.
1920 was a terrible year for Democrats; the public was fed up with Woodrow Wilson and WWI.
No senator has ever unseated a sitting POTUS running for reelection.