Good Thursday morning. Here are some of the stories making news in Washington and politics today.

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• New intelligence on Iran that has alarmed the White House, but divided government officials and foreign allies over its actual threat, was compiled from photos of missiles aboard small boats in the Persian Gulf — some of which were loaded by Iranian paramilitary forces.

• The State Department has ordered “nonemergency United States government employees” to leave Iraq, responding to what the Trump administration said was a threat linked to Iran. But to the people on Baghdad’s streets, American warnings parallel those before the invasion of Iraq.

• Few issues have defined Donald Trump’s presidency more than his love for tariffs, rooted in his economic and real-estate battles with Japan in the 1980s. Since entering the White House, tariffs have emerged as perhaps the purest policy expression of his 2016 campaign themes and economic agenda.