After re-establishing residency in Utah, Romney announced his campaign for the U.S. Senate seat held by the retiring Orrin Hatch in the 2018 election; he defeated state representative Mike Kennedy in the Republican primary and Democrat Jenny Wilson in the general election. In doing so, he became only the third individual ever to be elected governor of one state and U.S. senator for another state (the others being Sam Houston and William Bibb). Romney was sworn in on January 3, 2019.