drinking? >> well, passed out would be, no. but i've gone to sleep. but i've never blacked out. that's the -- that's the allegation. and that's wrong. >> reporter: in addition to speaking to classmates who say kavanaugh did drink to excess, cnn has spoken to a half dozen college and high school classmates of kavanaugh who say they never saw kavanaugh drink to the point of blacking out, and never aggressive. that was contradicted this weekend by chad ludington, the yale classmate who released this statement. at yale, he writes, brett was a frequent drinker and a heavy drinker. i know, he says, because especially in our first two years of college, i often drank with him. he goes on to write, when brett got drunk, he was often belligerent and aggressive. the yale roommates of debby ramirez, the woman claiming brett kavanaugh exposed himself at a party, said this about kavanaugh at yale. >> he was a sloppy drunk.