This November Oregon is certain to go to Obama. Thus, a friend reasons, true limited-government Republicans, who are less-than-enthralled with McCain, should vote for former Congressman Bob Barr, the Libertarian Party candidate. The reasoning goes, a vote for McCain is a wasted vote, so there’s no guilt, and much value, in checking the Barr box: Son of Read-My-Lips Bush, Sr. and his Rhino ilk far down the partisan line deserve to be purged. Having recently read “Our Collectivist Candidates,” which describes their philosophical sameness, my friend’s idea merits serious consideration. There comes a time to raise the Barr — and to quit voting for the evil of two lessers.