U.S. Rep. Luke Messer announced Wednesday on Twitter he will seek the Republican nomination for the Senate seat of Democrat Joe Donnelly.

“We’re in!!” Messer, R-6th, tweeted above what appears to be a campaign poster that states “I Like Luke U.S. Senate 2018.”

Messer, 48, has been a member of the House since 2013, representing east-central and southeast Indiana in the seat that Vice President Mike Pence left to become governor. Messer is a top advocate for expanding school choice and voucher programs. As chairman of the House Republican Policy Committee, he is the fifth-ranking GOP representative.

Click here for the full story.