Making the rounds, in hope it'll make a difference. The parents of Sandy Hook Elementary victims moved throughout the halls of the Hart building Tuesday meeting with senators.
The eleven family members flew to Washington Monday night on Air Force One with the president.
Tuesday, instead of speaking pleading their case in front of the reporters and cameras staked out, they tried to make their case face to face with more than a half dozen senators.
"They are ready for a marathon," said Connecticut Sen. Richard Blumenthal. "They are committed not only with the tears in their eyes but strength of their hearts, to make sure America confronts these problems."
The families are pushing for legislation, including a nationwide background check for gun purchases and a limit of ammunition clips.
But 14 Republican senators had threatened to filibuster any gun legislation.
"Americans will react in anger and anguish if a small group of senators stop a vote from happening," says Connecticut Sen. Chris Murphy.
Late Tuesday, Senate Majority Leader Harry Reid announced he will force a show down over gun control, pushing for a vote on legislation by Thursday.
Meanwhile, Vice President Joe Biden says he refuses to believe a small group of senators will block a vote on gun legislation.
The vice president says it would be "embarrassing" if a filibuster would be the climax of a national tragedy like the shooting at Connecticut's Sandy Hook Elementary School.
Biden spoke to law enforcement officers at the White House just before Senate Majority Leader Harry Reid announced he would push for a vote Thursday. He encouraged the police and sheriff's deputies to go talk to their lawmakers in uniform to encourage passage of the bill.
Biden vowed to win the fight on guns, even if this vote is blocked. He said Americans won't stand for inaction after Sandy Hook.
The Associated Press contributed to this story.