Former President Bill Clinton will campaign for his former political aide Terry McAuliffe in the Virginia Democrat's bid for governor.

McAuliffe annouced Wednesday via Twitter that Clinton, who he called the "last great jobs president," would join him on the campaign trail Monday in Roanoke, Va.

McAuliffe tweeted:

Last great jobs President is coming 2 campaign w/ me in Richmond & Roanoke Monday. RSVP 2 join me and Bill Clinton http://tinyurl.com/cved7m

The former Democratic National Committee (DNC) chairman and fundraiser for Clinton's 1996 reelection campaign is locked in a three-way Democratic primary against state Sen. Creigh Deeds and former Attorney General candidate Brian Moran.

The winner of that campaign will face Republican Attorney General Bob McDonnell in this fall's election.

Cross-posted on the Briefing Room.

The blog TechRepublican.com, which bills itself as the home of "internet and technology strategies for conservatives," launched a poll Wednesday to help determine which House Republican best utilizes Twitter.

The poll, launched by conservative media strategist David All, lines up some House GOP heavyweights in a poll to see who uses the microblogging software the best.

The options are House Minority Leader John Boehner (R-Ohio), House Minority Whip Eric Cantor (R-Va.), Republican Conference Chairman Mike Pence (R-Ind.), Conference Vice Chairwoman Cathy McMorris Rodgers (R-Wash.), Republican Policy Committee Chairman Thad McCotter (R-Mich.), and Chief Deputy Whip Kevin McCarthy (R-Calif.).

Head over to TechRepublican to cast your ballot.

Sen. Claire McCaskill (D-Mo.) struck a nerve late Tuesday night when she introduced a little family news into the Twittersphere:

Just talked my 17 year old,sweet Lily.She is all worried about her exam tomorrow on the Civil War.I remember being worried about tests..ugh.

Apparently, "Mary MacElveen" did not like this. At all. She responded to the Senator:

Senator, do we really NEED to hear of how your daughter Lily will do on a history exam? People are going without health care!

McCaskill seemed a little taken aback. She tweeted a response:

Gosh,sorry @MaryMacElveen,I just wanted to give her a shout out.Makes her feel good.Hoping small amt personal stuff doesnt diminish serious.

Sen. Arlen Specter has tweeted an attack against primary opponent Pat Toomey:

Toomey admits Senate is not desirable. He'd be "bereft of seniority" and "oppose policies instead of proposing them" http://tiny.cc/bA5Bc

The link goes to a PoliticsPA article detailing comments Toomey apparently made several weeks ago to Pennsylvania GOP Chairman Robert Gleason Jr.

U.S. Senate candidate Pat Toomey told Pennsylvania GOP Chairman Robert Gleason Jr. eight weeks ago that he didn

Students from high schools and colleges across the country are on Capitol Hill this week to join hearings on energy and climate change reform, from which they'll tweet their support for the legislation.

Students, mostly from D.C.-area colleges, are attending House Energy and Commerce Committee hearings on the American Clean Energy and Security (ACES) Act this week, using new media tools like Twitter and text messaging to build support for the legislation.

The bill, which includes a cap-and-trade system for carbon emissions and would fund investments in alternative energy, was introduced by committee Chairman Henry Waxman (D-Calif.) and Environment Subcommittee Chairman Edward Markey (D-Mass.).

The initiative is being pushed by Energy Action, a coalition of over 50 organizations such as the Sierra Student Coalition that work with young people demanding a clean energy economy.

The Washington Times' Christina Bellantoni checks in with this thought on the first family's fashion sense:

I can't help but ask - did President Clinton coordinate his tie color with First Lady Michelle Obama's sweater?

Please retweet - S.F. Mayor Gavin Newsom (D)
Cheney busted in CIA lie - Markos Moulitsas
If true, it's a horror - Contessa Brewer (MSNBC)
Sorry if you're offended - Meghan McCain
Comin' down from Brooklyn - Rep. Darrell Issa (R-Calif.)
Back in DC - Rep. Jared Polis (D-Colo.)
Lots of worthy projects - Rep. Ileana Ros-Lehtinen (R-Fla.)
McCain needs thicker skin - Matthew Yglesias
What's the economy look like? - David Gregory (NBC)
Testifying at CIA - Rep. Pete Hoekstra (R-Mich.)

San Francisco Mayor Gavin Newsom (D) announced Tuesday he's running for governor of California, and took to Twitter to ask supporters to spread the word.

Newsom tweeted via text message:

It's official- running for Gov of CA. Wanted you to be the first to know. Need your help. Check out video: http://tr.im/iOCN and ReTweet

By asking followers to "retweet" the message, Newsom has gotten to one of the core uses of Twitter for politicians. The San Francisco Mayor's almost 275,000 Twitter followers can help make Newsom's announcement go viral in a matter of moments.

For a politician, that's a powerful tool.

Sen. Susan Collins (R-Maine) is taking a little pride in a story published in The Hill today in which colleagues rated her as one of the best members with which to partner on legislation.

Collins tweeted Monday:

The Hill: Collins and Kennedy voted easiest to work with by peers .. http://tinyurl.com/dacwec

We'd look forward to Sen. Edward Kennedy's (D-Mass.) tweet about being ranked the easiest Democrat to work with, but he's not on Twitter.

Don't count on tweets from Sen. Jim Bunning (R-Ky.) or Sen. Patrick Leahy (D-Vt.), both of whom were ranked worst to work with -- neither of them are on Twitter.