Representative John Culberson, a Republican from Texas, has created the most volume on Twitter, posting over 2,000 messages, four times more than any other official on the micro-blogging site. Culberson told AFP, "To my knowledge I'm the first member of Congress to adopt it and use it."

Senator John McCain of Arizona touts the most Twitter followers with more than 106,000 people tracking his micro-messages, although many of the Tweets coming from the self-professed computer illiterate Senator sound more like the brief thoughts of a Generation X aide.  One of Sen. McCain's recent Twitter posts said, "#4. $143,000 for Nevada Humanities to develop and expand an online encyclopedia - Anyone heard of Wikipedia?"  After an entire election cycle of being hounded on his lack of tech-savviness, you have to wonder if Senator McCain has heard of Wikipedia.  Either way, Senator McCain, or his staff, is using Twitter effectively to garner attention on his stance against earmarks (those pet projects inserted by lawmakers into bills) by listing the top ten worst earmarks in the recent stimulus package on his Twitter page.

Can't keep track of all of the tweeting Representatives and Senators?  Tweetcongress.org, keeps track and ranks representatives and senators in terms of their number of followers and messages sent. 

Comedy Central's Jon Stewart reports on the Twitter Frenzy sweeping Washington.

Twitter Takes Washington By Storm