The president also reiterated his criticism that Canada “treats us very badly.” Trade talks between the nations collapsed last week.

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Asked whether the deployment of the Abraham Lincoln had gone on too long, the president said its deployment had lasted “not nearly long enough.”

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President Trump said that Ms. Leavitt, who recently gave birth to her second child, would be leaving to spend time with her family.

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As President Trump struggles to extricate the United States from the war in Iran, his promises to protesters in the country have fallen by the wayside.

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