South Dakota's first gubernatorial primary runoff pitted incumbent Larry Rhoden against outsider Toby Doeden after neither cleared the 35% threshold to win outright.
Senators capped off a day of tributes to their late colleague Lindsey Graham by advancing a sanctions bill he spent his final week of life negotiating.
The Senate on Tuesday confirmed Jay Clayton to serve as director of National Intelligence, a position that oversees 18 disparate intelligence agencies across the government.
The Health and Human Services Department announced a new policy Tuesday banning federal funding for "dangerous" gain-of-function research -- a kind of risky experiment that enhances viruses to try to predict how dangerous they might become.