The dramatic power play began Friday, continued through the weekend -- and poses extraordinary and unprecedented threats to US security, lawmakers say

As Elon Musk and his associates gain access to internal computers, Oregon Democratic Sen. Ron Wyden slammed the move and said it poses a national security risk. Musk claims the Treasury system isn't adequately fighting fraud,

The Trump administration pushed out a top Treasury Department official this week after he refused to give Elon Musk’s cost-cutting team access to the government’s vast payment system.