What are you talking about? Dont rememember if it was a political convention or election night but on one of Brinkley's last on air events he thought his mike was off and he did a late night tirade on Clinton being a liar that made it on air.
Maybe he wasnt a conservative ideologue but he was far from being liberal. He was very much centrist in his views. If you find that hard to believe, then perhaps its you that are a wee bit extreme.