Democrats Running for U.S. Senate in 2012

Claire McCaskill was first elected in 2006 as U.S. senator from Missouri in a close election that hinged, in part, on her support of embryonic stem cell research. McCaskill was national co-chair of President Obama's 2008 campaign.

Ten-term Rep. Ben Cardin was first elected in November 2006 as U.S. senator from Maryland. Cardin, a respected bipartisan legislator who voted against the Iraq War in 2002, is up for reelection in 2012.

Sheldon Whitehouse, former Attorney General of Rhode Island, was first elected senator in 2006, and is running for reelection in 2012. Whitehouse, a respected Judiciary Committee member, hails from a New England family with a long tradition of public service.

Jon Tester, former Montana State Senate President, was elected senator from Montana in 2006 with a razor-thin margin over the Republican incumbent. Tester, a third-generation Montana farmer, is running for reelection in 2012.

Bob Casey, Jr., former Pennsylvania State Treasurer, was first elected as senator in 2006, defeating Republican incumbent Rick Santorum. Casey,a pro-life Democrat, is running for reelection in 2012.

Amy Klobuchar, former County Attorney of Hennepin County, was first elected in 2006 as U.S. senator from Minnesota. Sen. Klobuchar, who was legal advisor to former Vice President Walter Mondale, is running for reelection in 2012.

Sherrod Brown, a 7-term House member, was first elected senator in 2006, defeating the Republican incumbent. Brown is a critic of U.S. free trade policies, and voted against the Iraq War in 2002.

Bill Nelson of Florida was first elected as senator in 2000. Sen. Nelson is running in 2012 for reelection to the U.S. Senate. Nelson, an Army veteran and NASA booster, is a fiscally moderate Democrat.

Maria Cantwell of Washington was first elected as senator in 2000, and is running in 2012 for reelection to the U.S. Senate. Cantwell is best known for her pro-environment stances and leadership in developing alternative energy sources.

Debbie Stabenow of Michigan was first elected senator in 2000, and is running in 1012 for reelection. Sen. Stabenow is a skilled legislator, tenacious advocate for her causes, and was one of 23 senators to vote against the Iraq War in 2002.

Sen. Dianne Feinstein, first elected as senator in 1992, is an astute liberal voice of authority and reasoned moderation. Sen. Feinstein, who catapulted to prominence when San Francisco Mayor Moscone was assassinated, is running in 2012 for reelection.

"Democrats are losing patience with Joe Lieberman" writes the SmirkingChimp.com blog. DemocraticWings.com nominated Joe Lieberman to the Democratic Hall of Shame.There's even a "DumpJoe" Yahoo user group. Bluntly, US Senator Joe Lieberman (D-CT) is up for reelection in 2006, and he has a problem.

Sen. Jeff Bingaman, five-term senator from New Mexico, is an intelligent, low-key leader dubbed by his home state newspapers as the "education" senator. He's a passionate advocate of energy conservation. Sen. Bingaman announced in February 2011 that he will not seek reelection in 2012.

Kent Conrad was first elected senator from North Dakota in 1986. He is not running for reelection in 2012. Conrad is a Democratic fiscal moderate and was Chairman of the Budget Committee in the 110th and 111th Congresses.

Jim Webb was elected to the U.S. Senate in 2006, in a surprise defeat of incumbent Republican Sen. George Allen. Webb, a highly decorated Vietnam veteran, was Secretary of Navy under President Reagan.

Hillary Clinton "will be the Democratic candidate for president in 2008" but she won't win, declared former First Lady Barbara Bush in March 2005. Senator Clinton is a brilliant leader who is a lifelong, devout Methodist. Surprisingly, she was a staunch Republican until her college days, who chose Yale Law over Harvard after a rift with a...

Profile and background of Tim Kaine, Democratic Party Chair and former Virginia governor.