Even though his preferred candidate didn't win, O'Malley said he is confident that Democrats will come together behind Delaney in his race against vulnerable incumbent Rep. Roscoe Bartlett. "I think we'll all be pretty united behind John Delaney," said O'Malley. Bartlett faces long odds in November following redistricting, which dramatically altered the partisan tilt of his district. The old 6th gave 41 percent of its vote to President Obama in 2008 while the new district gave about 57 percent of the vote to Obama. Bartlett trailed Delaney 48 percent to 39 percent in an internal poll conducted for the Democratic nominee's campaign that was released on April 17.