Oklahoma began its primary elections on Tuesday, June 16, 2026, for U.S. Senate and governor. Donald Trump endorsed Republican U.S. Rep. Kevin Hern for the U.S. Senate seat previously held by Markwayne Mullin. Trump also endorsed former state Sen. Mike Mazzei for the Oklahoma governor race. Oklahoma has not elected a Democratic senator since 1990. The race to succeed outgoing Gov. Kevin Stitt includes Attorney General Gentner Drummond, former Oklahoma House Speaker Charles McCall, and Chip Keating, according to srnnews.com. The U.S. and Iran have signed a memo of understanding giving them 60 days to find a way out of the war, according to the Guardian. The terms of the memo have not been publicly released, and Vice President JD Vance described it as a 'very general document' whose details will be ironed out in the coming weeks of negotiations, according to the Guardian.