I'm not sure how familiar you are with Paul's record but he's been a Congressman for 20+ years and has ALWAYS voted consistently. He was one of the three House Republicans who opposed the original PATRIOT Act. He consistently indicates that he will not use executive orders. He understands and has repeated that the president cannot take a country into war without a Congressional declaration of war first. He is constantly citing Constitutional provisions.

There is no reason to assume that Paul will turn evil as soon as he gets the Presidency. This is a different question from whether he will be able to be effective or not, and my belief is that he would not be able to do almost anything he wants to do, and that a Paul presidency would accelerate our plunge into chaos and anarchy, but I don't believe Paul himself would be corrupted and start ignoring the Constitutional stipulations on executive power.