Former Montgomery County Council member Duchy Trachtenberg said Thursday she would run for the newly-configured 6th congressional district seat, setting up a competitive Democratic primary for the right to take on Rep. Roscoe Bartlett (R).

Duchy Trachtenberg (Washington Post File)

State Senate Majority Leader Robert Garagiola (D-Montgomery) said last week that “there is a very very strong likelihood” he would enter the race in the 6th district, which — under the new map expected to clear the General Assembly Thursday — has been redrawn to favor Democrats by surrendering rural counties in the north and adding a portion of western Montgomery.

Bartlett, for his part, said in a statement issued Wednesday evening that he still plans to seek re-election despite his complaints about the new map. Bartlett raised just $1,000 in the 3rd quarter of the year, an extremely low number for an incumbent, raising questions about whether he planned to retire.

Garagiola is seen as having the backing of a good chunk of the party establishment, including Senate President Thomas V. Mike Miller Jr. (D-Calvert), a close ally who helped draw the new map.

But Trachtenberg vowed in a statement released Thursday that she “will win the Democratic nomination for Congress because the Annapolis insiders and old school politicians have already lost.”

Trachtenberg noted that she “represented nearly half of the new District as an At-Large Representative on the County Council. I’ll work just as hard for all the people in the new 6th Congressional District.”

Trachtenberg served on the Montgomery council from 2006-2010, when she lost to challenger Hans Riemer in a Democratic primary after earning the ire of public employee unions for her criticism of some worker compensation packages.