The report this week that former FBI Director James Comey is once again under investigation for possibly leaking yet more confidential material to the media should serve as a good reminder that only Democrats are allowed to investigate their political opponents.

When Republicans do it, the rules say, it’s an abuse of political power. And sorry, I don’t make the rules.

No, there are no such rules, but this really is what Democrats and the national media seem to believe.

The New York Times on Thursday broke the news that federal prosecutors are taking a look back at news reports from 2017, which contained details about a government email obtained by the Russians during their 2016 hacking campaign.

Both the Times and the Washington Post published information about the email, including how Comey came to know of it and his thoughts about it. If Comey was the one feeding the media information about it, this would be yet one more instance of him leaking secrets that he shouldn’t have been leaking.

In its report on Thursday, the Times said that the “timing” of the probe potentially implicating Comey “could raise questions about whether it was motivated at least in part by politics.” Uh, okay. And what difference would that make, exactly?

It’s not as though we haven’t just been through three years of politically motivated investigations demanded by Democrats.

Do you remember President Trump’s tax returns? He was elected despite never releasing them, and in office, his continued failure to do so hasn’t made any difference. The hunt for the returns is purely political.

Do you remember the Russia-collusion hoax? Why did a group of FBI agents fabricate a bunch of reasons to spy on Trump’s 2016 campaign? That was political, and we only know that because Attorney General William Barr called for an investigation into that matter. (Recall that Democrats had the temerity to call Barr’s probe political.)

Somehow, Democrats avoid media skepticism over their political investigations. So if the latest investigation of past leaks is political, even in part, then deal with it.