President Joe Biden made no mention of gun control in the aftermath of last week's shootings in Atlanta -- including during remarks after visiting the city -- but he will face more pressure now to voice an opinion on the matter after another mass killing in Colorado.

Biden is expected to be briefed again Tuesday morning on the deadly shooting, two White House officials said, and plans to comment on the shooting at some point later in the day. He was planning to travel to Ohio to promote the anniversary of the Affordable Care Act.

The President's team has met with gun control advocates over the past two months to discuss potential executive actions and to generate ideas on potential paths forward, according to people familiar with the meetings. Those meetings have been led by Susan Rice, director of the Domestic Policy Council and Cedric Richmond, a senior adviser to Biden and director of the White House Office of Public Engagement.

"We need action on this in the country," he said, pointing to recently passed legislation in the House. "This President has a track record of fighting against the NRA and beating them, and we need to make sure that we have sensible gun regulations in this country to ensure safety. And so we need action, not just words and prayers."

Among the executive actions Biden could advance include requiring background checks on "ghost guns" that don't have serial numbers or strengthening the federal background check system to alert law enforcement agencies when someone fails a check. Biden has also said he will task the attorney general with better enforcement of existing gun laws. And advocates have raised the idea of sending more federal money to communities afflicted by gun violence.

But some advocates walked away from meetings at the White House without a clear picture of the timeline for unveiling any gun control steps or a legislative plan for advancing gun control measures in an evenly split Congress. It wasn't clear from the meetings whether Biden would support doing away with the filibuster for gun control legislation.