Mayor Adrian Fenty will square off against challenger Vincent Gray, chairman of the D.C. Council, in the Democratic mayoral primary Tuesday. Registered voters will also vote on D.C. Council members and the city’s Congressional Delegate.

Polls opened at 7 a.m. and close at 8 p.m. The District’s primaries are closed, so voters must be registered Democrats, Republicans or DC Statehood Green Party members to participate in their parties’ primaries.

The mayoral race will likely be foremost on voters’ minds because the uprooting of Fenty is likely. The battle between the two Democrats is said to be deeply divided along racial lines, with African-Americans leaning toward Gray.

In his campaign, Gray promised to tackle unemployment rates, which are highest in the Anacostia community in which he lives, and to re-establish the Office of Religious Affairs, which was closed under Fenty.

Boasting a stable city, new bike lanes and a promise to make the city safer, Fenty hopes to return for a second term.

Recent polls suggest Gray is leading Fenty in terms of popularity but that Fenty’s campaign efforts have reached more people.

Del. Eleanor Holmes Norton, who also faces a Democratic primary challenge Tuesday, has not endorsed a mayoral candidate, said her communication director, Kezmiche Atterbury.