U.S. Senate Democrats are said to be unhappy with some of the details emerging about the crypto market structure bill's most contentious section: the language that will ban government officials from significant crypto ties. The deepest current point of disagreement is who will enforce the ban, according to people familiar with a crypto industry briefing delivered Tuesday from a White House official. The industry insiders were told that the Democrats have held tight to their preference that state attorneys general be able to enforce the ethics restrictions on federal officials, while the White House and Republicans behind the bill are insisting on the U.S. attorney general as the top authority.