This week, his group, Mayors Against Gun Violence, released a new television commercial to push for action from the federal government. The ad featured Roxanna Green, the mother of Christina Taylor-Green, a 9-year-old killed two years ago this week in Tucson, Ariz., in the shooting that severely injured Rep. Gabrielle Giffords.
In the ad Roxanna Green asked, "How many more children must die before Washington does something to end our gun violence problem?"
Bloomberg also released a statement after Cuomo's address saying he was "struck by his passionate leadership on gun violence."
"New York State has led the nation with strong, common-sense gun laws, and the governor's new proposals will build on that tradition," Bloomberg said. "They will help law enforcement keep guns out of the hands of criminals and other dangerous people and save lives. We strongly support his proposals to close loopholes and strengthen existing laws, and we look forward to working with him and the State Legislature to adopt them."
Cuomo's address came on the same day Vice President Biden began two days of meetings at the White House with victims of gun violence, gun safety advocate groups and gun rights groups, including the National Rifle Association, and gun sellers, including Wal-Mart.
Biden told reporters before the meeting that they were at the White House "to deal with a problem that requires our immediate action, urgent action," adding that he and President Obama "are determined to take action."
"I want to make it clear that we are not going to get caught up in the notion, unless we can do everything, we're going to do nothing," Biden said.
Cuomo wasn't the only governor to speak out about gun control Wednesday. Connecticut Gov. Dannel Malloy also used his State of the State address to stress "more guns are not the answer," and to announce the formation of the Sandy Hook Advisory Commission made up of experts in mental health, education, law enforcement and first response.
"Freedom is not a handgun on the hip of every teacher, and security should not mean a guard posted outside every classroom," Malloy said, referring to the NRA's proposal to have armed guards outside of every school in the country.
"We also know that this conversation must take place nationally," Malloy said. "As long as weapons continue to travel up and down I-95, what is available for sale in Florida or Virginia can have devastating consequences here in Connecticut. ... Our focus will be first and foremost on protecting Connecticut's families."
Another northeastern governor, Republican Chris Christie of New Jersey, did not touch the subject gun control in his address Tuesday. When asked on ABC News' "Good Morning America" Wednesday why he didn't bring up the topic, he said, "Given what's happened to our state, the majority of the time should be talking about Sandy."
ABC News's Mary Bruce contributed to this report.