Barack Obama sweeps another three contests. He garnered huge wins over Hillary Clinton in the so called Potomac Primary of Maryland, Virginia, and Washington DC.

In Virginia and Maryland, Obama received more than 60 percent of the vote. In the Maryland and the District more than 3/4 of the voters backed him.

"We won the state of Maryland, we won the Commonwealth of Virginia, And though we won in Washington DC, this movement won't stop until there's change in Washington DC."

Obama will receive a majority of the 168 delegates awarded in the region, giving him a slight lead in the race for delegates.

Cynthia McKinney won the Green Party contest in Washington DC. And in the Republican race John McCain beat out Mike Huckabee in all three contests, but barely in Virginia.

And big results in a Maryland Congressional primary. Progressive backed candidate Donna Edwards dethroned 8 term incumbent Al Wynn. Edwards ran on a platform of change. On the campaign trail, she highlighted Wynn's ties to big business.