The proposed rules would prohibit discrimination based on gender identity, among other things; they set up a clash with state lawmakers and conservative groups.
The decision by Representative Kevin McCarthy not to appoint Republicans to the committee has given Democrats the chance to set out an uninterrupted narrative.
Only two of the 14 Republicans who broke ranks to support taking up gun legislation are facing voters this year, showing how difficult such deals could be in the future.
Vulnerable Democrats have championed the move ahead of the midterm elections, but experts remain skeptical that suspending the federal tax would benefit consumers much.
The 64-to-34 vote came just hours after Republicans and Democrats released the text of the legislation, which could become the most significant overhaul of the nation’s gun laws in decades.
“Do you know how it feels to have the president of the United States target you?’’ Ruby Freeman, a Black election worker from Georgia, told the Jan. 6 committee.