When the Democratic gun-show amendment first came up for a vote a week ago, Senate Republicans defeated it, 51 to 47, in a largely party-line vote.
The rules were narrowly approved in the full House on a largely party-line vote of 216 to 213.
More than 20 amendments proposed by Republicans on the Democratic-controlled committee were rejected on largely party-line votes.
The legislation cleared the Republican-controlled committee 27 to 17 in a largely party-line vote after a day of verbal sparring.
The legislation is similar in its broad outlines to a version passed by the House on Thursday on a largely party-line vote after a bitter debate.
The Senate approved his nomination on a largely party-line vote of 60 to 36.
The House bill passed its main procedural hurdle in a largely party-line vote of 219 to 198.
While amendments could have been offered today in the subcommittee, none were, and the bill was approved on a largely party-line vote.
The House of Representatives, on a largely party-line vote of 238 to 179, approved the bill this morning.
In 1960, the Senate passed a resolution opposing the practice on a largely party-line vote, with most Democrats voting for the resolution and all the Republicans opposed.