Sens. Richard Blumenthal (D-Conn.) and Marsha Blackburn (R-Tenn.) have negotiated updated text for the Kids Online Safety Act (KOSA) with Elon Musk's social media platform X in an effort to quell Republican concerns about censorship in the House.

In a statement Saturday, the senators announced the updated text for KOSA boosts the protection of freedom of speech for minors online, a key concern for GOP leadership in the House, where the bill remains stalled.

"Led by X, the new changes made to the Kids Online Safety Act strengthen the bill while safeguarding free speech online and ensuring it is not used to stifle expression,” Blackburn and Blumenthal wrote. "These changes should eliminate once and for all the false narrative that this bill would be weaponized by unelected bureaucrats to censor Americans."

X CEO Linda Yaccarino echoed their remarks, calling on Congress to pass KOSA before the end of the year.

The measure, which overwhelmingly passed in the Senate in July, seeks to create regulations for the kinds of features tech and social media companies offer kids online and reduce the addictive nature and mental health effects of these platforms.

"At X, protecting our children is our top priority. As I’ve always said, freedom of speech and safety can and must coexist. And as a mother, it’s personal," she wrote on X Saturday.

Responding to Yaccarino's statement on X, Musk said, "Protecting kids should always be priority #1."

X already backed the legislation before its passage in the Senate last summer, though the renewed endorsement now comes with the apparent support of Musk, an emerging ally of President-elect Trump and other Republicans.

Blackburn and Blumenthal thanked both Musk and Yaccarino for their "bold leadership," suggesting the billionaire had some role in the process of updating the text.

It comes amid Musk's increasing involvement around government, as seen by his new leadership of Trump's "Department of Government Efficiency," or DOGE panel, which will offer recommendations to cut government spending and regulations.

Musk, along with DOGE's co-head, Vivek Ramaswamy, was on Capitol Hill last week meeting with Congressional leaders to discuss the advisory panel's goals.

Trump's son, Donald Trump Jr., also voiced his support for the updated measure, writing on X Sunday, "We can protect free speech and our kids at the same time. It's time for House Republicans to pass the Kids Online Safety Act ASAP."

The pressure comes with just weeks to go in the lame-duck session. KOSA, along with privacy bill COPPA 2.0, advanced out of the House Energy and Commerce Committee in September, but House leadership has mostly sidestepped whether the bills will be brought to the floor before the end of the year.

Many Republicans in the House have expressed concerns KOSA could censor conservative viewpoints and House Speaker Mike Johnson told Punchbowl News last month he likes the concept of the bill, though the details of the Senate-passed version are “very problematic.”

Blackburn's office said the changes to the bill's text further clarify KOSA would "not censor, limit or remove any content from the internet." The bill also does not give the Federal Trade Commision (FTC) or state attorneys general the authority to bring lawsuits over content or speech, her office dded.

The Hill reached out to House leadership for further comment Monday.  

Blackburn and Blumenthal have ramped up pressure on House leaders in recent weeks, sending a letter last week to Johnson and House Majority Leader Steve Scalise (R-La.) urging the bill to be brought to the floor.

Blumenthal expressed optimism the bill will pass if brought to the floor, telling The Hill last week, "There is such momentum in favor of this measure."

"I am very hopeful we'll see action in the House. All we need is a vote. If there's a vote it will pass," he said.

Should the bill not be brought to the floor, Blumenthal said there is "no question" that KOSA will be on the agenda in the next session.

Updated at 10:03 a.m. ET.