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

The world’s richest man now has the power to override congressional spending decisions and access to private information about every US taxpayer.

The highest-ranking career Treasury official resigned after a fight with Elon Musk’s Department of Government Efficiency associates over access to sensitive payment systems. David A. Lebryk, who has served in nonpolitical roles at the Treasury Department since 1989,