E! vs. Access -- Battle of the Twits

The Twittersphere is gettin' nasty -- with a fight brewing between E!'s Giuliana Rancic and Access Hollywood's Billy Bush!

The catfight started with Rancic dissing Miss California, and the exchange only got more heated from there.

Rancic: i know i'm a journalist, and i should be objective...but she is an ignorant discrace [sic] and she makes me sick to my stomach.

Bush: Giuliana...if you were a jouranlist [sic], you would have edited yourself at the last minute, but you are on E! and that's good too.

Bush: interesting. Tensions mount with passion. hard 4 people (not just G.R.) to remain level. but Obama has same stance as Miss USA. need him

Rancic: You're knocking E!??? Are you suddenly a hard-hitting anchorman? Speaking of editing, you spelled 'journalist' wrong.

Bush: the pressure of 140 got to me. but we have same news guidelines as Nightly News and Today Show. so no, but yes.

Then, 30 minutes later, Bush raised the white flag and surrendered.

Bush: All right, all right. I like Guiliana too and her husband Bill (a former judge). We're off point. My fault. GR...Sorry. May have news soon