"Klobuchar ran for Hennepin County Attorney in 1998 and for the U.S. Senate in 2006, where she has passed more legislation than any member of the U.S. Senate."
Had it said, "...any OTHER member..." I'd have no problem with it. As it is, I wonder whose senate she's a member of. It's a common construction today, so has grammar changed? Did I fail to get the memo?
It does give the impression that she isn't a member of the senate. I don't think it's a common construction though. It's not something I have encountered. I think it's just a mistake.
"No man but a blockhead ever wrote except for money." Samuel Johnson.
Odd as it may sound, I've seen this used more than "any other" for several years! I suspect that it just slips past most of us, and we unconsciously add "other." Watch for it and report back in a few weeks! Sattva, since you're in the USA, you'll likely see it more than Bob does, except when he's reading USA-Based stuff.