By David Morgan WASHINGTON (Reuters) – Florida Governor Ron DeSantis, widely seen as a potential leading Republican presidential contender, will campaign this month for party candidates endorsed by former President Donald Trump in swing states which will be key to the 2024 White House race. DeSantis, who is currently running for re-election in Florida, will speak at “Unite and Win” rallies on behalf of congressional and gubernatorial candidates in Arizona, New Mexico, Ohio and Pennsylvania on Aug. 14 and 19, his campaign and rally organizer Turning Point Action said on Monday. “He’s a wildly p…