Indiana's two U.S. senators cast opposing votes on a measure to undo the FCC's 2017 repeal of net neutrality rules -- a mostly party-line exercise won by those seeking the repeal.
All 49 members of the Democratic caucus -- plus three Republicans -- cast ballots for the resolution, which passed by a margin of 52-47.
The three Republicans crossing over were Lisa Murkowski of Alaska, John Kennedy of Louisiana and Susan Collins of Maine.
Indiana Sen. Joe Donnelly supported the resolution; Sen. Todd Young voted against it.
Net neutrality prevented providers such as AT&T, Comcast and Verizon from interfering with internet traffic and favoring their own sites and apps.
Telecommunications companies lobbied hard to overturn the 2015 rule, saying it discouraged investment and innovation. The FCC said in repealing it last December that it was simply restoring the "light-touch framework" that has governed the internet for most of its existence.
But the move has stirred fears among consumer advocates that cable and phone giants will be free to block access to services they don't like or set up "fast lanes" for preferred services — in turn, relegating everyone else to "slow lanes."
Wednesday's vote is a step toward a return to the Obama era regulations, but it appears far less likely that the House of Representatives will pass a similar measure.