Yes, constituent service matters, a lot. If you see someone underperforming in their district, bad service is probably a key reason why. And good service will up the winning margin.
Walsh rode the tea party wave to primary victory in 2010 against an uninspiring field, the failure to find true top-tier candidates to run (either in 2006, 08, 10 or now) is curious. But because of the seat’s then GOP lean I wasn’t shocked at his victory, which was very narrow with a Green costing Bean victory.
I've made no endorsement for who should replace Coburn in Oklahoma. Whoever wins will likely have an easy time holding the seat for however they want, so we should make sure the candidate is a rock solid PROVEN conservative across the board. Lots of freepers say T.W. Shannon is a great conservative state house speaker, but they said the same thing about Marco Rubio so I'm taking it with a grain of salt until I can look at his record (thankfully I don't think we'll end up with a two way race of Shannon vs. horrible DIABLO traitor like we had in FL with the race coming down to Rubio vs. Crist). Lots of freepers love Bridenstine. If the reason to back him is because "Mark Levin says so", I give it no weight and quite frankly I'm sick of that argument from Levin cultists. I don't doubt Bridenstine looks like a solid conservative on paper though. But Shannon also looks good on paper thus far, and seems to be a legitimate rising star and is indeed of mixed black and native American ancestry, it's not made up for PR purposes, he has an interesting life story. I'll research this primary closer before taking sides.