Can someone set me straight re: Booker releasing the "committee confidential" emails? [View all]

[phylny]

I'm reading on Twitter and Facebook that the emails Booker is releasing had already been released by the Republicans. I had understood that one of the reasons Booker was releasing them was to show that there's no national security threat or top secret info in these emails, and to show where Kavanaugh is being dishonest in his answers, or at least not forthcoming.

Did the Republicans really release these previously? If so, why the hissy fit by them reading rules to Senator Booker, etc. today?

Thanks in advance!