And this is why "24's" Logan is more like Bush than Nixon - spoiler

[question everything]

It really was not too surprising to find out that Logan is a puppet being manipulated by as yet unknown people.

No one would have ever accused Nixon of being manipulated by others except for his own demons. Nixon was considered to be a smart man - even by his worst enemies.

While Reagan and more so Bush were nothing but facades chosen by some behind the scene to not think too much, just to do and say what they were told to.