I'm surprised Lankford is getting so few votes. Being a Republican Senator in Oklahoma basically guarantees him a 60%+ approval rating.
Jim Inhofe's approval isn't stellar IIRC.
Yes. Coburn was the one who got sky-high approval ratings.
When was Inhofe's last approval poll? The most recent one I can find is from 2010. Considering he nearly cracked 70% this past election I'm assuming it's higher now.
He's at 60+% approval, but he wasn't always that popular. Usually he was around high-40s, low-50s, not great, but enough to get re-elected easily.