Thomas Wictor, intelligence analyst, details what President Trump has done to check voter fraud. The DIA refers to the Defense Intelligence Agency. He is saying that the DIA, which is a component of the Defense Department, had powers to find intelligence and report it to the Defense Department Secretary. As you know, Trump recently replaced the traitorous DoD Sec. Esper with a new head, Christopher Miller. He can report directly to the president.
Interesting information here.