The U.S. Conference of Mayors passed a series of resolutions this week in support of more gun control.

The bipartisan conference, which met in Boston and involves mayors representing cities of over 30,000 people, specifically called for more regulation of gun sales and dealers, and also for a ban on assault weapons and large-capacity magazines. It also opposed measures that would allow teachers and other non-law enforcement personnel to carry firearms in K-12 schools, a policy pushed by President Trump.