President-elect Donald Trump has more than an army of Secret Service agents protecting him at his Mar-a-Lago home in Florida.

The “high-tech hound,” as the Secret Service has been known to call it, was filmed walking the perimeter of the Palm Beach property alongside an agent.

In the years that followed, Trump was widely blamed for Republican losses, indicted four times, convicted on 34 felony counts, ruled to have inflated his assets in a civil fraud trial and found liable ...