Al-Monitor | Bryant Harris: The attack on the Saudi Aramco oil facility over the weekend and President Donald Trump�s subsequent tweet that the United States is �locked and loaded� immediately prompted presidential candidate Sen. Bernie Sanders, I-Vt., to fire back.

Sanders and other progressive lawmakers stressed that Trump does not have the legal authority from Congress to launch an offensive strike against Iran.

�Mr. Trump, the Constitution of the United States is perfectly clear,� Sanders tweeted. �Only Congress � not the President � can declare war. And Congress will not give you the authority to start another disastrous war in the Middle East just because the brutal Saudi dictatorship told you to.�

And in an interview on ABC on Sunday, hours before Trump�s tweet, Mayor Pete Buttigieg of South Bend, Indiana � another 2020 contender � criticized Trump�s maximum pressure strategy against Iran.

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