In a show of national unity, President Joe Biden ought to play a round of golf with Donald Trump.

At Trump’s invitation, the pair of duffers could go 18 holes at Trump’s International Golf Club in West Palm Beach, the site of the second failed attempt last week to assassinate Trump.

Kamala Harris could drive the golf cart.

That was when gunman Ryan Wesley Routh, 58, lay in the bushes for 12 hours waiting to take a shot at Trump before he was ousted by a Secret Service agent who spotted the muzzle of his rifle.

He was tracked down and arrested shortly after he fled and charged with firearm offences with more charges to follow.

The match-play golf event between the two, with Harris keeping score, would go a long way toward unifying the country during these turbulent times. It would be called the “Save Our Democracy Open.”

While Trump is known as a good golfer, Biden claimed at their debate to be a six-handicap golfer, which Trump scoffed at. Biden said, “I’d be happy to play golf with you if you carry your own bag.”

Trump should take Biden up on it, excluding carrying the bag, of course. Biden cannot possibly be as bad at golf as he was at running the country. Not a joke.

And with Harris keeping score, Biden could probably break the course record even though Trump owns the golf course.

The only rules would be that neither Biden nor Harris could call Trump “Hitler,” Trump could not call Biden “a loser,” and Harris “dumb as a rock.”

The match would be even better than a closed White House unity meeting among the three where Harris could claim to be the last person in the room after the other two left.

This time, of course, there would be heightened Secret Service protection, complete with drones and dogs to ferret out any potential assassins hiding out in the bushes or in a grassy knoll.

The Secret Service comes under Alejandro Mayorkas, the dangerously incompetent head of Homeland Security. Mayorkas runs the agency like he runs the southern border. Nobody knows what is going on. Or if they do, they will not tell you.

There is precedent for presidents and former presidents golfing together even though they belonged to the same party.

In 2015 then President Barack Obama played a round of golf with fellow Democrat former President Bill Clinton at the exclusive Farm Neck Golf Club at Oak Bluffs in Martha’s Vineyard in 2015.

While neither are great golfers, both were known for their “kickshot.” A kickshot is when, instead of using a club, a golfer kicks his ball out of the rough onto the fairway.

And former President George W. Bush played golf with his father   George H.W. Bush, also a former president and fellow fine golfer.

However, Trump is considered to be the best golfer ever to serve as president. Just ask him.

All of this would be fun and games if it were not so deadly serious.

Twice now the once respected Secret Service has botched its assignment is to have provided adequate perimeter protection for Trump. The U.S. Postal Service could have done a better job.

The mail carrier at least knows the neighborhood.

It has gotten so bad that the only secret is how the Secret Service got to be so incompetent at providing protection for Donald Trump, the only former president, and possibly future president, to be shot and wounded and set up to be shot again.

It was pure luck that a Secret Service agent spotted Routh’s rifle in the bushes before Trump and his golfing mates approached.  Luck is not policy, however.

Nowhere is a man, let alone Trump, as alone as he is on a wide-open golf course.

Hunter Biden has gotten better Secret Service protection.

Maybe Trump should play golf with him.

Peter Lucas is a veteran political reporter. Email him at: peter.lucas@bostonherald.com