A motion to open debate on the January 6 commission failed by a vote of 54 in favor to 35 against, with 11 abstentions.
Sen. Maria Cantwell voted for the commission, lining up with Democrats and six Republicans. The violence left five people dead including a Capitol Police officer. The motion needed 60 votes to pass.
A Democrat who is seeking a sixth term in 2022, Murray had publicly supported the commission, and earlier this year recalled her own harrowing experience on January 6, when she hid with her husband in an office near the Senate chamber as rioters banged on the door, trying to break in.
"This was one of the darkest moments in American history, the worst attack on our democracy since the Civil War, and we need to understand what went wrong so we can prevent similar crises in the future", King said in a statement.
Lawmakers had hoped to create a bipartisan commission to investigate the deadly riots, which took place when supporters of then-President Donald Trump stormed the Capitol in the hopes of delaying the Electoral College certification of the 2020 election.
Speaker Nancy Pelosi has made clear repeatedly that moving to create a select committee has always remained a fallback option - something that would require the support of a majority of the Democratic-led House to create.
However, Republican lawmakers had voiced opposition to the commission.
The desire for a hard line in dealings with China is one of the few truly bipartisan sentiments in the deeply divided U.S. Congress, which is narrowly controlled by President Joe Biden's fellow Democrats. It was a rare Friday vote for the Senate. Bill Cassidy, Susan Collins, Lisa Murkowski, Rob Portman, Mitt Romney and Ben Sasse.
Her stance again puts Collins at odds with her party and Senate Minority Leader Mitch McConnell, R-Kentucky, who opposed the bill despite amendments proposed by Collins meant to alleviate McConnell's objections to the composition of the commission and the timeline for its work. Two Democrats and nine Republicans skipped the vote. When you've submitted your account email, we will send an email with a reset code.