Don Benton must go.No, not go to another free meal some lobbyist is buying. Not to the dry cleaner to pick up his shirts washed and pressed courtesy of the taxpayers. And not to his second taxpayer-funded job as the $100,000 county environmental services director, for which he is totally unqualified.No, Benton must go. As in “see ya!”Of course, we’re talking about state Sen. Don Benton, who is also — as noted — the guy his commissioner buddies sneaked into this sweet county environmental job.In Tuesday’s Columbian, we reported on an investigation conducted by legislative officials involving Benton and state Sen. Ann Rivers. Both senators are Republicans, so this isn’t your typical party vs. party dustup. To be fair, the investigators’ conclusions put some of the blame on Rivers as well.But anyone who knows Benton knows this mess has his fingerprints all over it.The irony is it began when Benton filed a complaint against Rivers, the very popular, rising conservative star from our area. I like her.Benton’s complaint essentially said Rivers wasn’t nice to him and even swore at him.Well, OK.After Benton foolishly asked for this investigation, Rivers essentially took command of the situation and won the battle. Admittedly, that’s not a difficult thing to do when you’re dealing with this guy. In the end, Rivers would not put up with being bullied by Benton. So, rightly, she fought back.