Washington, Sept. 15 -- US Attorney General Todd Blanche brushed aside legal and ethical queries stemming from investigative disclosures regarding Russian billionaire Umar Kremlev funding Donald Trump Jr.'s wedding festivities in the Bahamas.

During a White House press briefing, Blanche stated, "The president doesn't know who this person is. I think other members of the family don't know who this person is," concerning Kremlev, the businessman linked to the Kremlin whom ProPublica indicated covered expenses related to the event.

Described as possessing close ties to President Vladimir Putin and leading the International Boxing Association, Kremlev expended hundreds of thousands of dollars covering the wedding weekend expenses, according...