Amendment explained as lawmakers and key politicians call for it be used on Donald Trump following threats made against Iran

Oil and stock prices fluctuated on Monday as attacks continued in the Middle East and investors weighed threats by President Trump to escalate strikes on Iran against diplomatic efforts to forge a cea...

But Trump’s comment Tuesday morning that a “ whole civilization will die tonight ” unless Iran makes a deal has spurred increasing calls — among a somewhat odd amalgamation of voices — to invoke the a...