USC Title 18, Part I, Chapter 115 § 2381. Treason

Whoever, owing allegiance to the United States, levies war against them or adheres to their enemies, giving them aid and comfort within the United States or elsewhere, is guilty of treason and shall suffer death, or shall be imprisoned not less than five years and fined under this title but not less than $10,000; and shall be incapable of holding any office under the United States.

Just as a sort of mental exercise try that definition out, with a fair and open mind, on some of our current crop of politicians.  The way I parse the requirements for treason is as follows: To be found guilty of treason, a person must...

1. Owe allegiance to the United States
2. Either levee war against the United States, OR
3. Give aid and comfort, whether at home or abroad, to the enemies of the United States (adheres)

So let's see how this fits on some of our leaders, shall we?

President Bush

1. Yes. 
2. No.
3. No.  In fact quite the opposite, a pretty strong case can be made that the enemies of the United States have been fairly discomfitted by his actions.

Now I'll leave the running of other politicians through this little test to the readers with just the the following instructions: remember, to be a traitor, #1 MUST be true, and #2 OR #3 must be true (or both, of course).  So, and I don't want to bias anybody's efforts, the question that will have to wrestled with is how can anyone justify that Senators like Senator Reid don't owe allegiance to the United States.  Good luck.