House Minority Leader Nancy Pelosi urged GOP leaders on Wednesday to consider tougher gun laws in the wake of Monday’s fatal shooting at the Navy Yard in Washington, D.C.

Flanked by victims of gun violence from across the country, the California Democrat called on Republicans to stage a vote on a bipartisan proposal expanding background checks on potential gun buyers.

By ignoring the issue, she said, Congress is “unworthy” of the ritual moments of silence that have followed the many mass shootings of recent years.

“We don’t need a moment of silence, we need a day of action,” she said during a press conference in the Capitol. “I believe that if the bill were brought to the floor, it would pass, and it would pass in a bipartisan way.