"There is no other issue out there in the American public today like background checks", Murphy told the president. On the campaign trail, Trump called out Hillary Clinton for saying he supports arming teachers, tweeting, "Crooked Hillary said that I want guns brought into the school classroom".
In the announcement, the reelection campaign also said it would be involved in the 2018 midterms by "providing candidates with general support, endorsements and rallying the support of the political grassroots by engaging Trump supporters in districts and states".
Sanders, speaking to reporters at the White House, refused to commit Trump to any specific proposal except support for legislation that strengthens the national criminal background check system.
The legislation failed in 2013 after the school massacre in Newtown, Connecticut. The senator has previously opposed so-called bump stocks, which the Las Vegas shooter used to increase the firing speed of his semi-automatic rifle.
"By listening to President Trump's words I do feel he is committed to finding a way forward and he is committed to putting a plan together", she said. But as survivors of the Florida shooting continued to speak up and draw media attention, Trump began to publicly shift.
The House approved the bill late past year as part of a broader package that also expanded gun rights by requiring states to recognize conceal-carry permits issued by other states.
The NRA also contributed $1,000 from its Political Victory Fund to Duncan on November 15, according to Federal Election Commission filings.
Mr. Machin said he thinks their bill can pass this time because people have confidence that President Trump will not come after their gun rights.
Toomey, who attended the meeting, told MSNBC on Thursday it was clear Trump "wants to get something done".
"We all agree that what happened in Parkland can never happen again anywhere & changes exist we can all get behind", Rubio said in a post on Twitter.
During Wednesday's meeting, President Trump was very explicit about what he wanted. Joe Manchin created in response to the 2012 shooting at Sandy Hook Elementary School.
Texas Sen. John Cornyn, who is pushing a bill to improve background checks, says leaving Washington "empty-handed is not accepted".
Conservatives and liberals alike condemned the president's proposal, which illustrates his inconsistent support for the fundamental right.
In a meeting with lawmakers from both parties to discuss gun control and school safety Wednesday, President Trump supported suggestions from Democrats, while disagreeing with Republicans and boasting about his willingness to buck the NRA. Dianne Feinstein-a measure the NRA strongly opposes.