Exploring who has the power to declare war

The Republican-led House Oversight Committee subpoenaed the attorney general on Tuesday. The Justice Department called it "completely unnecessary."

French President Emmanuel Macron on Wednesday called for strikes in the U.S. and Israeli conflict against Iran on energy and water infrastructure to be stopped. “I have just spoken with the Emir of Qatar and President Trump following the strikes that hit gas production facilities in Iran and Qatar today,” Macron said in a post...

Senate Republicans on Wednesday defeated a Democratic-sponsored motion to advance a war powers resolution to halt President Trump’s military strikes against Iran, a conflict that has caused oil and gas prices to soar. The Senate voted 47-53 against discharging the resolution to rein in Trump’s authority from the Senate Foreign Relations Committee. Sen. Rand Paul (Ky.) was...

Japan’s newly elected prime minister Sanae Takaichi faces increasing complexity in the country’s relationship with the U.S., especially with the recent war with Iran halting the flow of vital oil shipments to Japan. NBC News’ Janis Mackey Frayer reports on the evolution of the U.S.-Japan relationship.