Motes & beams
Point the first:
"The emails are labeled "committee confidential" meaning that they should not be shared beyond the committee. But on Thursday they were leaked to the news media and some were then later publicly posted by Senator Cory Booker (D-NJ), who argued they were of such significance that their release was warranted due to the broader public interest."
The e-mails were cleared for release on Wednesday per Booker's request & with his knowledge. His (Booker's) claims of putting the public ahead of partisan interest was itself a partisan sham (admittedly, not something alien to Booker).
Point the second:
That Kavanaugh was an associate in the White House during the Bush 43 administration is known, as is his work before & after. His role was to coordinate between various entities in the administration. That he handled documents regarding surveillance post-9/11 is utterly unsurprising & in no way demonstrates knowledge of the actual programs put in place, let alone contradicting his testimony.
Point the third:
Kavanaugh is arguably less a partisan choice than Elena Kagan (I'd be curious to see McCarthy's published objections to that nomination) as Kavanaugh has over a decade on the United States Court of Appeals for the District of Columbia Circuit whereas Kagan had no prior experience as a federal judge.
It's not difficult to conclude Kieren McCarthy is attempting to manufacture a controversy where none exists to further his own partisan & ideological views. It's not his views that are objectionable but the obfuscatory manner in which they're presented.