In February 2010, McDuffie resigned from his position in the mayor's administration and declared his candidacy to represent Ward 5 on the Council of the District of Columbia. McDuffie supported expanding employment opportunities and tackling HIV. He criticized incumbent Harry Thomas Jr. for being reactive rather than proactive. During his campaign, McDuffie stressed several urgent problems in the ward, including lack of quality education, lack of effective job-training programs, lack of affordable housing, and a need for more services for senior citizens. Thomas won the Democratic Party primary election and went on to win the general election as well.
2012 election
In January 2012, Thomas resigned from the Council and pleaded guilty to two federal crimes, theft and filing three years of false tax returns. McDuffie confirmed that he would run in a special election to fill the vacancy represent Ward 5 in the Council. McDuffie said that programs such as affordable housing should receive additional funding before other programs such as establishing a streetcar system and expanding the Capital Bikeshare program. McDuffie supported community-oriented, responsible and sustainable development. He was in favor of the District's program providing health insurance coverage to residents, regardless of legal status in the country, who earn too much to qualify for Medicaid but not enough to be able to afford private insurance. McDuffie believed the District's summer-jobs program should be changed so that only teenagers from low-income families would be eligible. He did not support requiring some charter schools in Ward 5 to have a neighborhood admissions preference to assure some seats to local residents because it would restrict the schools' flexibility. Councilmember Tommy Wells endorsed McDuffie for his progressive agenda and emphasis on good government. The District's firefighter union, the Service Employees International Union Maryland and DC State Council, the National Nurses United union, the Local 25 Hospitality Workers' Union, the AFL-CIO, the DC Latino Caucus, and the Gertrude Stein Club also endorsed McDuffie's candidacy. Meanwhile, American Federation of State, County and Municipal Employees District Council 20 endorsed Delano Hunter, and The Washington Post endorsed Tim Day. McDuffie won the special election, receiving 43 percent of the votes. His term ended 2014.
2014 election
McDuffie ran for re-election in the 2014 election and won the primary against Kathy Henderson, Advisory Neighborhood Commissioner for Carver Langston; and Carolyn C. Steptoe, Advisory Neighborhood Commissioner for Brookland. Libertarian Preston Cornish is the only candidate who opposed him in the General Election. He was re-elected with 83.93% of the vote.
Committees
McDuffie currently serves on the following committees:
McDuffie lives on North Capitol Street with his wife, Princess, and his daughters, Jozi and Kesi.
Election history
2010 Council of the District of Columbia, Ward 5, Democratic Party Primary Election 2012 Council of the District of Columbia, Ward 5, Special Election 2014 Council of the District of Columbia, Ward 5, Primary Election 2014 Council of the District of Columbia, Ward 5, General Election