Barack Obama Political career 1996–2008

Obama was elected to the Illinois Senate in 1996, succeeding State Senator Alice Palmer as Senator from Illinois's 13th District, which at that time spanned Chicago South Side neighborhoods from Hyde Park-Kenwood south to South Shore and west to Chicago Lawn. Once elected, Obama gained bipartisan support for legislation reforming ethics and health care laws. He sponsored a law increasing tax credits for low-income workers, negotiated welfare reform, and promoted increased subsidies for childcare. In 2001, as co-chairman of the bipartisan Joint Committee on Administrative Rules, Obama supported Republican Governor Ryan's payday loan regulations and predatory mortgage lending regulations aimed at averting home foreclosures.

Obama was reelected to the Illinois Senate in 1998, defeating Republican Yesse Yehudah in the general election, and was reelected again in 2002. In 2000, he lost a Democratic primary run for the U.S. House of Representatives to four-term incumbent Bobby Rush by a margin of two to one.

In January 2003, Obama became chairman of the Illinois Senate's Health and Human Services Committee when Democrats, after a decade in the minority, regained a majority. He sponsored and led unanimous, bipartisan passage of legislation to monitor racial profiling by requiring police to record the race of drivers they detained, and legislation making Illinois the first state to mandate videotaping of homicide interrogations. During his 2004 general election campaign for U.S. Senate, police representatives credited Obama for his active engagement with police organizations in enacting death penalty reforms. Obama resigned from the Illinois Senate in November 2004 following his election to the U.S. Senate.

2004 U.S. Senate campaign
See also: United States Senate election in Illinois, 2004

In May 2002, Obama commissioned a poll to assess his prospects in a 2004 U.S. Senate race; he created a campaign committee, began raising funds and lined up political media consultant David Axelrod by August 2002, and formally announced his candidacy in January 2003. Decisions by Republican incumbent Peter Fitzgerald and his Democratic predecessor Carol Moseley Braun not to contest the race launched wide-open Democratic and Republican primary contests involving fifteen candidates.Obama's candidacy was boosted by Axelrod's advertising campaign featuring images of the late Chicago Mayor Harold Washington and an endorsement by the daughter of the late Paul Simon, former U.S. Senator for Illinois. In the March 2004 primary election, Obama won an unexpected landslide victory with 53% of the vote in a seven-candidate field, 29% ahead of his nearest Democratic rival, which overnight made him a rising star in the national Democratic Party and started speculation about a presidential future.

In July 2004, Obama wrote and delivered the keynote address at the 2004 Democratic National Convention in Boston, Massachusetts.Though it was not televised by the three major broadcast news networks, a combined 9.1 million viewers saw Obama's speech, which was a highlight of the convention and elevated his status as a star in the Democratic Party.

Obama's expected opponent in the general election, Republican primary winner Jack Ryan, withdrew from the race in June 2004.Two months later, Alan Keyes accepted the Illinois Republican Party's nomination to replace Ryan. A long-time resident of Maryland, Keyes established legal residency in Illinois with the nomination. In the November 2004 general election, Obama received 70% of the vote to Keyes' 27%, the largest victory margin for a statewide race in Illinois history.

U.S. Senator: 2005–2008
Main article: United States Senate career of Barack Obama

Obama was sworn in as a senator on January 4, 2005. Obama was the fifth African American Senator in U.S. history and the third to have been popularly elected.He was the only Senate member of the Congressional Black Caucus. CQ Weekly, a nonpartisan publication, characterized him as a "loyal Democrat" based on analysis of all Senate votes in 2005–2007. The National Journal ranked him as the "most liberal" senator based on an assessment of selected votes during 2007; in 2005 he was ranked sixteenth most liberal, and in 2006 he was ranked tenth. In 2008, Congress.org ranked him as the eleventh most powerful Senator, and the politician who was the most popular in the Senate, enjoying 72% approval in Illinois. Obama announced on November 13, 2008 that he would resign his senate seat on November 16, 2008, before the start of the lame-duck session, to focus on his transition period for the presidency. This enabled him to avoid the conflict of dual roles as President-elect and Senator in the lame duck session of Congress, which no sitting member of Congress had faced since Warren Harding.