Updated: A spokesman for Rep. Donna F. Edwards said the congresswoman will attend the rally. The spokesman said in an e-mail that Edwards initially planned to attend but then had a scheduling conflict. Edwards was "able to move things around so as to make it," the spokesman said.      

Previous post: Democratic National Committee chairwoman Debbie Wasserman Schultz will headline a rally in Silver Spring on Wednesday to campaign for some of the state's Democratic officials who are up for election in 2012, state party officials announced Tuesday.

Wasserman Schultz, who took over the national party this year, will attend the rally alongside Sen. Benjamin L. Cardin, Rep. Chris Van Hollen and Baltimore Rep. Elijah Cummings. None are currently expected to have difficult races next year.

The rally, which will also include Gov. Martin O'Malley, comes as competitive races are developing elsewhere in the state, particularly in the 6th District, held by Republican Rep. Roscoe G. Bartlett, and the 4th District, held by Democratic Rep. Donna F. Edwards.

A number of Democratic candidates are considering a challenge to Bartlett, who has said he will seek reelection. And on Tuesday, former Prince George's County State's Attorney Glenn Ivey said through a spokesman that he is considering a challenge to Ivey in the 4th District.

Edwards, whose old district covered portions of Silver Spring -- but not the specific site of the rally -- was not listed on the lineup of attendees. Edwards opposed O'Malley during last week's special session of the General Assembly, arguing that his proposed redistricting plan diluted the voting power of Montgomery County minorities.