WASHINGTON — Halfway through what has so far been a scandal-stained first term as Washington's mayor, Vincent Gray can't seem to escape the shadow of the predecessor he defeated by a hefty margin two years ago.

Gray's performance in office has been steady but not splashy. But his winning campaign is the subject of a federal investigation that leaves his political future uncertain. So far, three former aides have pleaded guilty to felonies.

Meanwhile, former Mayor Adrian Fenty left a tangible legacy, and his accomplishments and shortcomings are still being debated. He got national attention for his commitment to improving the District of Columbia's failing schools.

Many political insiders still bristle at Fenty's personality. But they agree that he got things done.