Sen. Dianne Feinstein (D-Calif.) said on Monday that a controversial assault weapons ban will not be part of a Democratic gun bill that was expected to reach the Senate floor next month.

After a meeting with Senate Majority Leader Harry Reid (D-Nev.) on Monday, a frustrated Feinstein said she learned that the bill she sponsored — which bans 157 different models of assault weapons and high-capacity ammunition magazines — wouldn’t be part of a Democratic gun bill to be offered on the Senate floor. …

“My understanding is it will not be [part of the base bill],” Feinstein said. “It will be separate.”

Asked if she were concerned about the decision, Feinstein paused and said, “Sure. I would like to [see the bill moved], but the leader has decided not to do it.”

“You will have to ask him [Reid],” she said, when asked why the decision was made.