Indiana GOP Rep. Luke Messer, one of the biggest supporters of school choice in Congress, announced Wednesday that he is seeking the Republican nomination for the Indiana Senate seat.

Messer was first elected to the House of Representatives in 2012, and has been one of the foremost supporters of choice since then. Back in 2015, Messer tried to get language added to the Every Student Succeeds Act that would have allowed students to use federal Title I money at the private schools of their choice. He’s introduced similar legislation this year. And he teamed up with Rep. Jared Polis, D-Colo., on a bill that would have revamped school privacy laws. A member of the education committee, Messer played up his work on K-12 on his new campaign website.

We’re in!! See you at the picnic on August 12th. https://t.co/nmj6LhyMGh pic.twitter.com/QFVfSG5kVK

— Luke Messer (@LukeMesserIN) July 26, 2017

A former Indiana state representative who led a school choice advocacy group in the Hoosier State, Messer founded the congressional school choice caucus after coming to Washington.

Earlier this week, we highlighted a potential “school choice smackdown” between Messer and Rep. Todd Rokita, a fellow Indiana Republican in Congress who also appears set to run for the Indiana GOP Senate nomination. (The winner will face incumbent Democratic Sen. Joe Donnelly.) Rokita is chairman of the House subcommittee on K-12 and led the successful charge to repeal Obama administration’s ESSA accountability regulations earlier this year. Rokita is also a staunch ally of school choice.