WASHINGTON — Senior Republicans conceded on Tuesday that the grueling fight with President Obama over the regulation of Internet service appears over, with the president and an army of Internet activists victorious.
The Federal Communications Commission is expected on Thursday to approve regulating Internet service like a public utility, prohibiting companies from paying for faster lanes on the Internet. While the two Democratic commissioners are negotiating over technical details, they are widely expected to side with the Democratic chairman, Tom Wheeler, against the two Republican commissioners.
And Republicans on Capitol Hill, who once criticized the plan as “Obamacare for the Internet,” now say they are unlikely to pass a legislative response that would undo perhaps the biggest policy shift since the Internet became a reality.
“We’re not going to get a signed bill that doesn’t have Democrats’ support,” said Senator John Thune, Republican of South Dakota and chairman of the Senate Commerce Committee. “This is an issue that needs to have bipartisan support.”
The new F.C.C. rules are still likely to be tied up in a protracted court fight with the cable companies and Internet service providers that oppose it, and they could be overturned in the future by a Republican-leaning commission. But for now, Congress’s hands appear to be tied.
The F.C.C. plan would let the agency regulate Internet access as if it is a public good. It would follow the concept known as net neutrality or an open Internet, banning so-called paid prioritization — or fast lanes — for willing Internet content providers.
In addition, it would ban the intentional slowing of the Internet for companies that refuse to pay broadband providers. The plan would also give the F.C.C. the power to step in if unforeseen impediments are thrown up by the handful of giant companies that run many of the country’s broadband and wireless networks.
Republicans hoped to pre-empt the F.C.C. vote with legislation, but Senate Democrats insisted on waiting until after Thursday’s F.C.C. vote before even beginning to talk about legislation for an open Internet. Even Mr. Thune, the architect of draft legislation to override the F.C.C., said Democrats had stalled what momentum he could muster.
And an avalanche of support for Mr. Wheeler’s plan — driven by Internet companies as varied as Netflix, Twitter, Mozilla and Etsy — has swamped Washington.
“We’ve been outspent, outlobbied. We were going up against the second-biggest corporate lobby in D.C., and it looks like we’ve won,” said Dave Steer, director of advocacy for the Mozilla Foundation, the nonprofit technology foundation that runs Firefox, a popular Web browser, referring to the cable companies. “A year ago today, we did not think we would be in this spot.”
The net neutrality movement pitted new media against old and may well have revolutionized notions of corporate social responsibility and activism. Top-down decisions by executives investing in or divesting themselves of resources, paying lobbyists and buying advertisements were upended by the mobilization of Internet customers and users.
“We don’t have an army of lobbyists to deploy. We don’t have financial resources to throw around,” said Liba Rubenstein, director of social impact and public policy at the social media company Tumblr, which is owned by Yahoo, the large Internet company, but operated independently on the issue. “What we do have is access to an incredibly engaged, incredibly passionate user base, and we can give folks the tools to respond.”
Internet service providers say heavy-handed regulation of the Internet will diminish their profitability and crush investment to expand and speed up Internet access. It could even open the web to taxation to pay for new regulators.
Brian Dietz, a spokesman for the National Cable & Telecommunications Association, said the pro-net-neutrality advocates turned a complex and technical debate over how best to keep the Internet operating most efficiently into a matter of religion. The forces for stronger regulation, he said, became viewed as for the Internet. Those opposed to the regulation were viewed as against the Internet.
The Internet companies, he said, sometimes mislead their customers, and in some cases, are misled on the intricacies of the policy.
“Many of the things they have said just belie reality and common sense,” he said.
In April, a dozen New York-based Internet companies gathered at Tumblr’s headquarters in the Flatiron district to hear dire warnings that broadband providers were about to obtain the right to charge for the fastest speeds on the web.
The implication: If they did not pony up, they would be stuck in the slow lane.
What followed was the longest, most sustained campaign of Internet activism in history. A swarm of small players, like Tumblr, Etsy, BoingBoing and Reddit, overwhelmed the giants of the broadband world, Comcast, Verizon Communications and Time Warner Cable. Two of the biggest players on the Internet, Amazon and Google, largely stayed in the background, while smaller participants — some household names like Twitter and Netflix, others far more obscure, like Chess.com and Urban Dictionary — mobilized a grass-roots crusade.
“Our community is the source of our power,” said Althea Erickson, director of public policy at Etsy, an online craft market, where users embroidered pillows and engraved spoons promoting net neutrality.
In mid-October, the tech activist group Fight for the Future acquired the direct telephone numbers of about 30 F.C.C. officials, circumventing the agency’s switchboard to send calls directly to policy makers. That set off a torrent of more than 55,000 phone calls until the group turned off the spigot on Dec. 3.
In November, President Obama cited “almost four million public comments” when he publicly pressured the F.C.C. to turn away from its paid “fast lane” proposal and embrace a new regulatory regime.
Since then, the lobbying has grown only more intense. Last week, 102 Internet companies wrote to the F.C.C. to say the threat of Internet service providers “abusing their gatekeeper power to impose tolls and discriminate against competitive companies is the real threat to our future,” not “heavy-handed regulation” and possible taxation, as conservatives in Washington say.
Republicans have grown much quieter under the barrage.
“Tech companies would be better served to work with Congress on clear rules for the road. The thing that they’re buying into right now is a lot of legal uncertainty,” said Mr. Thune. “I’m not sure exactly what their thinking is.”
Mr. Thune said he was still willing to work with Democrats on legislation that he said would do what the F.C.C. is trying to accomplish, without a heavy regulatory hand: Ban paid “fast lanes” and stop intentional slowdowns — or “throttling” — by broadband companies seeking payment from Internet content providers.
But even he said Democrats were ready to let the F.C.C. do the job.
An earlier version of this article, using information from a Tumblr executive, misstated the location of the Tumblr boardroom. It is in the Flatiron district, not in the Flatiron Building.