I’m almost laughing out loud at the notion that Republican National Convention delegates might revolt this summer and nominate someone other than Donald J. Trump if his poll numbers continue to tank.

If history is our guide, it won’t happen based on that criterion.

In 1964, Republicans gathered in San Francisco to nominate Arizona U.S. Sen. Barry Goldwater to run against President Lyndon Johnson. He trailed badly at the convention. He continued to trail badly throughout the campaign. The president won election by 23 percentage points.

Eight years later, Democrats faced a similar dilemma. They nominated South Dakota U.S. Sen. George McGovern at their convention in Miami; McGovern was far behind in the polls. The convention was one of the most chaotic ever witnessed. McGovern delivered his “Come home, America” acceptance speech in the wee hours. He went on to lose big in 1972 to President Richard Nixon, also by 23 points.

In 1988, Vice President George H.W. Bush was trailing Democratic nominee Michael Dukakis by 17 percentage points when the GOP convened in New Orleans. The vice president stood before the throng and vowed a “kinder, gentler nation.” He was elected by 8 percentage points.

The polls aren’t going to determine whether Trump is nominated.

My own view is that the presumptive GOP nominee, by virtue of his collecting more votes than any of other candidates and winning the vast majority of state primaries and caucuses has earned the party nomination.

Let the delegates stand by their man. Send him off to campaign against Hillary Clinton.

Take your chances, GOP. Trump is your guy.