A hard-charging NYC lawyer may follow in the footsteps of ex-mayors Mike Bloomberg and Rudy Giuliani by shifting course to run as a Republican, The Post has learned. Jim Walden, currently an independent who vows to fight corruption in NYC government, has started meeting with local GOP leaders to seek their support, he confirmed. “My goals will always be governed by common sense,” Walden said. “But many of them align with centrist Republicans. I believe in safety as the first priority, fiscal responsibility, cutting waste and promoting efficiency in government agencies.” Mayor Adams faces challengers from a field of Democrats,...