Biden personally adds mentions of an assault weapons ban to his planned public remarks, a White House official said.
"We're going to ban assault weapons again," he said on Thursday at a Lunar New Year reception at the White House, to applause.
As vice president, he spearheaded a set of gun control proposals for Barack Obama after Sandy Hook that included a recommendation for a new assault weapons ban.
However the Quinnipiac and other polls show that just about half of Americans support an assault weapons ban.
Even though an all-out assault weapons ban seems unlikely, a very thin Republican majority in the House means that something more modest, such as raising the age to 21 to buy assault weapons, could be possible, the University of New Hampshire's Scala said.