I don't think he did. He was just out ranked. I also am led to believe that he and Rove never liked each other. Rove was willing to trash Cheney and Rummy - thinking it would shield Bush. Another of his mental failings.
My daughters knew how much I liked VP Cheney, so when he was in the area in the 2008 election, they got a signed photo from him for me. I have it proudly hung still.
I was a real BushBot, and I defended him over everything but amnesty and Dubai Ports. I even was willing to overlook Harriet Miers if the consensus was she would be the only one who could make it through confirmation. It turned out that she wasn’t, and that she was the one likely not to win confirmation, so we were spared any long-lasting embarrassment.
And then those crucial years when report after report of WMDs surfaced and no push back. And then one known to me and trustworthy reported eyewitness experience with multiple found WMDs. My regard for Pres. Bush continued in other areas, but on this one I was sure he was wrong.
Cheney was loyal, but I can’t imagine him suffering stupidity in silence.