Under Mr. Trump, the skepticism is rooted inside the White House.
Officials at the department have felt they could not broach topics like domestic terrorism and white supremacist violence with Mr. Trump because he was not interested in those concerns, two people familiar with deliberations inside the administration said.
At one point, Kirstjen Nielsen, then the homeland security secretary, sought a regular meeting with Mr. Trump to brief him on a variety of topics including domestic terrorism, but her proposal was rejected by the White House, a person with knowledge of the effort said.
And Mr. Trump continues to harbor a deep distrust of the F.B.I., which has made public statements about the threat of domestic terrorists and racially motivated violence as growing national security threats.
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