U.S. Senate's Warren asks for Trump-tied crypto probe as market structure bill drags

The influential Democrat is the most vocal critic of the crypto legislation, and she continues to throw rhetorical sand in the gears of the negotiation. What to know : U.S. Senator Elizabeth Warren, the ranking Democrat on the Senate Banking Committee, is calling for a probe into DeFi platforms, especially on their relationship with the business interests of President Donald Trump. Warren's pushback comes as the Senate is still negotiating the details of a crypto market structure bill, a process that's now drifted into January.