The Florida governor's campaign is wobbling as he struggles to convince voters he is not merely a lighter version of his big rival Ron DeSantis’s new campaign manager could prove to be the shot in the arm his ailing presidential bid needs. The Florida governor is flailing amid a media narrative that his campaign has failed to inspire the support of enough Republican primary voters ahead of the first public debate on August 23. [cut] ...His supporters hope that the change of personnel, which also includes the appointment of former Ted Cruz strategist David Polyansky as deputy campaign manager, will...