Elizabeth Warren, mulling a run against U.S. Sen. Scott Brown (R-Wrentham), is touching base with Democratic activists, including Dorchester’s Joyce Linehan, a key player in local politics.

Linehan said Warren, returning to Massachusetts after a stint setting up the Consumer Financial Protection Bureau in D.C., gave her a call earlier today to reach out and talk about the potential candidate’s listening tour. Warren is expected to make a decision whether to jump into the race, which has already drawn a handful of Democratic candidates, after Labor Day.

Linehan said she pledged support Warren “110 percent.” She added that the listening tour speaks to a “lack of hubris” on Warren’s part. “I think that bodes well for a great campaign,” said Linehan.

According to the Boston Globe and other news outlets, Warren has tapped Doug Rubin and Kyle Sullivan, former advisers to Gov. Deval Patrick, to counsel her as she moves closer to a 2012 Senate run.

Linehan has volunteered for a number of local elected officials, including Gov. Deval Patrick, state Rep. Marty Walsh (D-Dorchester), U.S. Rep. Michael Capuano’s unsuccessful run for Senate in 2009, City Councillor At-Large Ayanna Pressley, and John Connolly’s first run at a City Council At-Large seat in 2005.

Yesterday, Warren, a Harvard professor, posted on the left-leaning website Blue Mass Group. “In the weeks ahead, I want to hear from you about the challenges we face and how we get our economy growing again,” she wrote. “I also want to hear your ideas about how we can fix what all of us – regardless of party – know is a badly broken political system. In Washington, I saw up close and personal how much influence special interests have over our law-making, and I saw just how hard it is for families to be heard. I want to hear your thoughts about how we can make sure that our voices –our families, our friends, and our neighbors — are heard again.”