The presidential campaign of Gov. Ron DeSantis is clearly in a downward spiral, whether measured by polling, internal upheaval, shifting strategies or money woes.
Early this year, Mr. DeSantis seemed to have a clear path to the Republican nomination: He was a political fighter in the mold of Donald J. Trump, but without the chaos and with a solid record of conservative achievements in Florida.
But those best-laid plans have met reality — a…