The ACLU even has a contact-your-Congresscritters page up, one that redirects to their secure site so you can be sure you're getting the ACLU and not some cybersquatter intercepting their communications for political purposes. (I refuse to believe, absent further evidence, that the administration would order the NSA to spy on people accessing aclu.org, or that the NSA would do it. Nixon fell because people refused to follow his illegal orders, and Bush is facing the same problem.)

"The President lied to the American people and broke the law." There's the elevator statement. For the incredibly butt-headed, you can add, "That's allegedly why they impeached President Clinton, remember?"

(Via Daily Kos, which displays a different ad - I think the one above is far more effective.)