I never understood why Bingman coasts to re-election, without ever facing a serious challenge. He seems like the ultimate non-entity. I guess he must have good constituent services or something.
Part of it has to do with his wealthy wife, who almost single-handedly financed his first campaign.
Domineci and Pearce, with a vengeance and in the past, Joe Skeen, were always around having meetings but Bingaman only comes around at reelection time.