U.S. Rep Jackie Walorski and three others were killed in the Elkhart County crash.
The fatal Wednesday crash also killed the congresswoman's aide Emma Thomson and two others, according to the sheriff's office in Elkhart County, Ind.
The Indiana Republican was a senior House member, her party’s top member on the House Ethics Committee and a member of the Ways and Means Committee.
Walorski’s death is a shock to the Capitol community.
She’d been set to take on a leadership role on the Ways and Means Committee if Republicans took back the House in November.