TALLAHASSEE, Fla. - Manny Diaz, the former Miami mayor who had pledged to rebuild the Florida Democratic Party after years of losses, abruptly announced his immediate resignation as party chair on Monday amid growing calls for his ouster. Diaz’s departure came after Florida Democrats suffering some of their worst losses ever, including the re-election of Gov. Ron DeSantis by 19 points over Charlie Crist, the election of a supermajority in the Florida Legislature and the flipping of several counties including once-reliable blue Miami-Dade County. Diaz, in a statement to Democrats Monday, said he was unable to carry out his plans...