Wisconsin’s Republican Gov. Scott Walker has reversed the promotion of a 27-year-old son of a lobbyist whose appointment to an $81,500 administration job sparked cronyism claims by Democrats. Walker’s spokesman Cullen Werwie said in a statement Tuesday that Brian Deschane will return to his previous $65,000 job with the Department of Regulation and Licensing just two days after the Milwaukee Journal Sentinel first reported his hiring and promotion. It’s the latest chapter in the ongoing showdown between Walker and Democratic legislators, including senators who fled the state on Feb. 17 to temporarily delay a vote on a bill ending most...