Investigations will focus on Elon Musk’s involvement in the Department of Government Efficiency's firing of federal workers in 2025, and Stephen Miller’s role in US President Donald Trump’s immigration crackdown

With their new majorities in Congress, Democrats are going after a campaign finance gap that lets executives who make billions from federal contracts spend freely to elect the lawmakers who approve those contracts. Sen. Chris Van Hollen (D-MD) and Rep. Robert Garcia (D-CA), the incoming chairman of the House Oversight…