Republican National Committee Chairman Reince Priebus said it again this morning.

Hillary Rodham Clinton committed crimes while she was secretary of state, he told Chuck Todd on “Meet the Press.” The Democratic Party’s presidential nominee, he said, is a criminal over her use of a personal e-mail server. He said Clinton sent “highly classified” material out on that server, implying I guess that the material could have fallen into enemy hands.

I expressed long ago some concern over the use of the personal server. Secretaries of state or anyone charged with handling top-secret material need to ensure it’s distributed along highly encrypted channels.

Now, did she commit a crime?

Let’s see. The FBI investigated this matter thoroughly. The agency is run by a Republican, a guy named James Comey, who is as thorough an investigator as they come. He’s also a former federal prosecutor. The man knows the law.

Comey completed his probe and delivered a scathing rebuke of what Clinton did, how she handled the material through the personal server. Comey didn’t like what he found — and he said so! He described Clinton’s use of the personal server as “reckless.”

Then he also said that Clinton didn’t commit an offense for which she could be prosecuted.

End … of … story.

But wait!

Comey also gave the Republican Party a bottomless supply of ammo to fire at Clinton. He’s given the GOP plenty of grounds — or pretexts, if you will — to keep harping about the e-mail issue.

The GOP chairman this morning continued his party’s political attack.

Hillary Clinton, though, is not a criminal.