DANBURY, Conn. — Vice President Joe Biden is trying to rally support for the administration’s proposals to curb gun violence, saying there will be a moral price to pay for inaction.

Biden is speaking Thursday at a conference in Danbury, Conn., just a few miles from the scene of the shooting at Sandy Hook Elementary School. He says that America has changed its views of gun control since the Dec. 14 massacre of 26 people inside the Newtown school.

Other speakers, including the parents of a 7-year-old girl killed at Sandy Hook, urged Congress to honor the memories of the victims with strong action.

Meanwhile, Connecticut Gov. Dannel P. Malloy announced he wants to immediately ban high-capacity ammunition magazines, require background checks for the transfer of firearms and expand the state’s assault weapons ban.