President Trump, at the National Prayer Breakfast in Washington, D.C., on Thursday, pledged to "totally destroy" a law that bars political activity by religious institutions. Evan Vucci/AP hide caption

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Evan Vucci/AP

President Obama speaking at the National Prayer Breakfast in Washington, D.C., on Thursday. Mandel Ngan /AFP/Getty Images hide caption

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Mandel Ngan /AFP/Getty Images