As AT&T's leak of email addresses yesterday demonstrates, there are more than a few fans of the iPad on Capitol Hill.  White House Chief of Staff Rahm Emanuel was among those who had their emails leaked.

However, he's not the only politician or Capitol Hill bureaucrat to go public that they're an iPad user, according to a story in The Washington Post.  The story says that senior adviser David Axelrod, deputy press secretary Bill Burton, communications director Dan Pfeiffer, and press wrangler Ben Finkenbinder.  Obama's Economic adviser, Larry Summers, even takes his to long staff meetings to pull up facts and figures -- and maybe play some games if the meeting gets too boring.

Summers loves the Bloomberg app, according the report, and also digs the Scrabble app.  He even downloaded his first iBook -- "The Federalist Papers".

Other staffers enjoy ABC's "Lost" episodes, the Vanity Fair magazine app, Major League Baseball app, National Public Radio's app, and a bunch of newspaper apps.

The popularity of the device has Federal Reserve Chairman Ben Bernanke, a long time Amazon Kindle user, considering switching.  

Some Republicans are also jumping to purchase the hot device.  Rep. Jeff Flake (R-Ariz.) bought one, but promises his constituents he'll purchase apps in a "fiscally conservative" manner.  Rep. Kevin McCarthy (R-Calif.) also has been seen sporting one.  And veteran Republican consultant Russ Schreifer has a "fully souped-up, 64-gig, 3G version."  Between reading iBooks like "Abraham Lincoln: Vampire Hunter" by Seth Grahame-Smith and "The War Lovers," by Evan Thomas, he finds time to use the device to review and approve rough cuts of campaign commercials and raw footage for ads.

However, perhaps the most high profile iPad user is Vice President Joe Biden, that has been shown in recent YouTube videos playing with his own iPad.

With the iPad having sold 2 million units already, and on its way to as many as 8 million unit sales this year, it's clear that Washington D.C. is no exception to the iPad fever that's sweeping the country.  In fact, our elected officials may be leading the charge.