If there’s any strategy in the world of President Donald Trump, it’s a simple one: Play on my field.

And the Trump playing field is a salacious one. The scandals and affairs are literally too numerous to be chronicled in a single article. Large and small, Trump University to Trump Steaks, bankruptcies and legal judgements, all manner of infidelity and aberrant behavior, real or imagined.

Former FBI Director James Comey and Special Counsel Robert Mueller were each charged with looking into an allegation of the most serious variety — colluding with a foreign hostile power to alter the presidential election.

This week the headlines emanating from Mueller’s investigation, and Comey’s book, involve a porn star, a Playboy bunny, a pee tape, the size of Trump’s hands and a doorman with a history of fibbing apparently alleging the existence of an illegitimate child.

That is playing on Trump’s field.

But wait. Isn’t it a violation of campaign law if Trump’s lawyer Michael Cohen paid off Stormy Daniels just ahead of the election? If Cohen used a home-equity loan to fund the payment, did he lie to the bank? Doesn’t it speak to Trump’s truthfulness on a variety of a matters — including alleged collusion with Russia — whether his persistent denials of engaging with prostitutes in Moscow are truthful? Doesn’t it have relevance to the question of whether payoffs were legal if Trump bought off a doorman? And didn’t Mueller actually hand off the investigation on Daniels?

Yeah, sure, all of that.

Those are all on the level of the Ken Starr investigation into Bill Clinton’s perjury — legal matters, yes, that aren’t really the stuff of high crimes and misdemeanors. They’re all gotchas reinforcing what we basically knew about Trump and his behavior before the election.

By contrast, the consequences of playing on Trump’s field are enormous.

For Comey, baiting Trump into a reaction, which sure as water is wet came on Friday morning, will result in better book sales. But it will come at the expense of holding any future higher office. His legacy as FBI director — already tarnished for the ridiculous, torturous inconsistencies in how he handled the investigation into Hillary Clinton’s emails — is forever tarnished. Who in Washington could hire this guy? “Untruthful,” as Trump called him? No. “Slime ball?” Hmm.

Mueller, too, looks set to emerge damaged, if perhaps not as fatally. The question of whether Trump can, or should, fire him has returned. Mueller, also a former FBI director, does still have the support of both House Speaker Paul Ryan and Senate Majority Leader Mitch McConnell to finish his investigation, and a few key Republicans, including Sen. Chuck Grassley, have expressed willingness to support legislation to protect him. But the idea of his dismissal is definitely more plausible — and, for that matter, the outrage it would generate a good bit lessened.

For Trump, of course, the news isn’t particularly positive. But it’s also worth noting his standings in most polls have improved over the last few weeks, even if they’re still underwater.

It’s also worth remembering the last person who engaged Trump on the issue of hand size. That was Marco Rubio. He quit the presidential race soon after.