NEWSA look at Tim Kaine's political careerHillary Clinton announced on July 22, 2016, that she selected Tim Kaine as her running mate. Here's a look back at his political career.Drew Angerer, Getty ImagesTim Kaine, then the mayor of Richmond, Va., speaks with then-Energy secretary Bill Richardson during an energy seminar at Virginia Commonwealth University in Richmond on June 19, 2000.Bob Brown, APKaine and Mark Warner celebrate at a rally in Richmond, Va., on Nov 6, 2001, after Warner was elected governor and Kaine was elected lieutenant governor.Wayne Scarberry, APKaine points at his Republican rival in the governor's race, Jerry Kilgore, during a debate sponsored by the Fairfax Chamber of Commerce on Sept. 13, 2005, in McLean, Va.Kevin Wolf, APTim Kaine waves to the crowd during a victory celebration in Richmond, Va., on Nov. 8, 2005, after he defeated Republican challenger Jerry Kilgore in the state's gubernatorial election.Steve Helber, APKaine meets with Senate Minority Leader Harry Reid and House Minority Leader Nancy Pelosi in the Capitol on Jan. 31, 2006, as he prepared to deliver the Democrats' rebuttal to President Bush's State of the Union Address.Tim Dillon, USA TODAYKaine greets the staff of the Montgomery Regional Hospital along with director of the emergency room, Dr. Mike Hill, left, in Blacksburg, Va., on April 18, 2007, as he visited some of the wounded students from the Virginia Tech shooting.Steve Helber, APMembers of the Virginia Military Institute Corps of Cadets, left, and the Virginia Tech Corps of Cadets, right, salute as Queen Elizabeth II and Kaine enter the Virginia State Capitol in Richmond, Va., on May 3, 2007.Bob Brown, APKaine speaks at the Democratic National Convention in Denver on Aug. 28, 2008.Sam Riche, USA TODAYPresident-elect Obama announces Kaine as the new Democratic National Committee chairman on Jan. 8, 2009, in Washington.Charles Dharapak, APKaine speaks during the DNC's summer meeting on Aug. 20, 2010, in St. Louis.Jeff Roberson, APKaine takes the podium at the Democratic National Convention in Charlotte on Sept. 4, 2012.H. Darr Beiser, USA TODAYKaine and Republican candidate George Allen shake hands during a senatorial debate in McLean, Va., on Sept. 20, 2012.Evan Vucci, APPresident Obama, former president Bill Clinton and Kaine wave at supporters during a campaign rally at Jiffy Lube Live in Bristow, Va., on Nov. 3, 2012.Jewel Samad, AFP/Getty ImagesKaine speaks to his supporters after winning his Senate race on Nov. 6, 2012, in Richmond, Va.Patrick McDermott, Getty ImagesKaine is flanked by Senate colleagues while speaking about gun control during a news conference on the Senate steps at the Capitol on Oct. 8, 2015.Mark Wilson, Getty ImagesSupreme Court nominee Merrick Garland is greeted by Kaine before they sit down for a meeting in the Russell Senate Office Building on Capitol Hill on April 21, 2016.Chip Somodevilla, Getty ImagesHillary Clinton arrives with Kaine at a rally at Florida International University Panther Arena in Miami on July 23, 2016.Mary Altaffer, APKaine walks on stage for his speech during the Democratic National Convention in Philadelphia on July 27, 2016.Jack Gruber, USA TODAYKaine and his wife, Anne Holton, acknowledge the crowd during a campaign event on Aug. 1, 2016, in Richmond, Va.Alex Wong, Getty ImagesAbe Lincoln impersonator Lance Mack of Marion, Iowa, greets Kaine after a rally on Aug. 17, 2016, in Cedar Rapids, Iowa.Rodney White, APKaine shakes hands with supporters after speaking at Florida A&M University in Tallahassee, Fla., on Aug. 26, 2016.Mark Wallheiser, APKaine pumps his fists after being introduced during a campaign stop on Sept. 1, 2016, in Dover, N.H.Charles Krupa, APKaine speaks during a campaign rally in Wilmington, N.C., on Sept. 6, 2016.Chuck Burton, APKaine leaves a meeting with Senate Democrats on Capitol Hill on Sept. 7, 2016.Susan Walsh, APKaine poses with the audience after a campaign rally at the University of Michigan in Ann Arbor, Mich., on Sept. 13, 2016.Paul Sancya, APKaine gestures during the vice presidential debate at Longwood University in Farmville, Va., on Oct. 4, 2016.Jewel Samad, AFP/Getty ImagesKaine speaks during a campaign rally in Asheville, N.C., on Oct. 19, 2016.Chuck Burton, APKaine speaks during a campaign rally at Kenyon College in Gambier, Ohio, on Oct. 27, 2016.Eric Albrecht, APTim Kaine plays harmonica alongside Jon Bon Jovi at a get-out-the-vote rally at the State Theater in St. Petersburg, Fla., on Nov. 5, 2016.Tamara Lush, AP