Dozens of people protested outside and inside the Wilson Building on Wednesday, calling on D.C. Mayor Muriel Bowser to end a voluntary collaboration by D.C. police with federal immigration officers. Immigration rights activists said they're upset about the ongoing immigration enforcement in the District. Wednesday's demonstration follows a recent traffic stop that appeared to end with a possible immigration arrest outside a D.C. elementary school. Bowser has been critical of D.C. law enforcement being involved with immigration operations in the District. She acknowledged Wednesday that the Metropolitan Police Department (MPD)'s cooperation with federal immigration enforcement, coupled with the federal surge and National Guard troops on D.C. streets, has undermined the public’s trust in police. The mayor made the comments at an event organized by the National Press Foundation. Speaking with a group of journalists from around the country, Bowser was asked about the impact of the federal surge and immigration enforcement on public trust. "We're concerned about community trust, because in a public's eye, anybody in a uniform is the same, if for some people, so our MPD, our police department, which we worked for 20 years to get them a great reputation, that has been terribly disrupted by the presidential emergency," Bowser said. On Tuesday, News4 spoke with a parent who watched D.C. police and federal agents conduct a possible immigration arrest outside her children’s school. "I'm sorry to say that trust is broken," parent Rebecca Jones said. "Whatever work they've done to build trust is going to take decades to rebuild at this point." Bowser was also asked about D.C.'s lack of voting representation in Congress and whether having D.C. become part of Maryland would be a solution. "We're not Marylanders," Bowser said. "We're Washingtonians. And that's my position." She continued: "I'm not sure Marylanders would want us, in the end, because you know what that would mean? That means that, like, I could be the governor of Maryland. And I don't think they want somebody from Petworth or Shepherd Park or North Michigan Park to be the governor of Maryland." After the event, Bowser stopped to talk with local reporters. We asked her about the possibility of several D.C. councilmembers giving up their seats next year. Brianne Nadeau has announced she’s not running for reelection; Councilmembers Robert White and Brooke Pinto are both running for Congress, challenging longtime D.C. Del. Eleanor Holmes Norton. In addition, Councilmember Trayon White is facing bribery charges, making the Ward 8 seat uncertain. Reporter: "We could see a pretty big shake up in the Council." Bowser: "Good. That would be great." Reporter: "I'd love for you to expand on that." Bowser: "When I was on the Council, I loved being on the Council. So I am a little bit surprised that people are eager to get off the Council, because I loved being a councilmember. We'll see how that race goes. I have no plans of making any endorsements at this time." Reporter: "You said 'good' enthusiastically about people, that shakeup on the Council. Are there people you would like to see off the Council?" Bowser: "If people are saying to themselves, 'I'd rather contribute in another way,' that's good." The mayor declined to answer any questions about seeking a fourth term next year. WAMU Radio has reported that a poll is being conducted asking about support for a fourth term for Bowser. The mayor told News4 she is not conducting that poll. Get the D.C. area's top news and weather delivered to your inbox every morning. Sign up for First & 4Most, our free newsletter.