Senator Joe Manchin (D-WV) was one of five Senate Democrats withholding support for the Protecting the Right to Organize (PRO) Act—until yesterday.While participating in this virtual event, Senator Manchin announced he’s now signing on as a co-sponsor, saying, "I look forward to working with my colleagues, on both sides of the aisle, to move this bill through a legislative process.”What an act of betrayal. Unsurprisingly, another holdout— Senator Angus King (I-ME)—also threw freelancers under the bus last week.Business groups immediately rebuked him. "It is very disappointing that Senator Manchin has chosen to side with union bosses over West Virginia’s workers...