Can Congress limit Trump's ability to authorize military action on Iran?

As tensions between the U.S. and Iran persist, both the House and the Senate are pursuing measures to restrict President Trump’s war powers -- but there are differing opinions about what they should entail. How has presidential authority been leveraged and limited in past U.S. military engagements? Lisa Desjardins joins Judy Woodruff to discuss that topic as well as the latest on impeachment.

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