Word from a credible source has David Nolan, a co-founder of the Libertarian Party, running for the U.S. Senate as that organization's candidate.
Nolan is underwhelming in person, to put it politely, and generally opposed to the sort of libertarianism that admits ideas and solutions instead of reflexive "principles". He's also been a destructive force within the Libertarian Party. At the 2008 convention at what was supposed to be an "elder statesman" dinner he called for the Reform Caucus, the single best hope for reviving that moribund 3rd party, to "go reform the GOP", and supported the restoration of a dippy, ideological platform that does the opposite of showing off the best of modern libertarianism. For as long as he's been around, he's said to have been a supporter of the Sarah Palinization of the Libertarian Party, and Brian Doherty's book has him as a driver of the "Never again Clark!" movement that destroyed the LP's shot at UK Liberal Party or German Free Democrats-style credibility. It's worse: later in 2008, he backstabbed the Bob Barr campaign when it was at its fundraising and earned-media peak. I have the e-mails if anyone is interested.
Given that he has never held public office or served in government, the public would be right in having zero confidence in his ability to represent Arizona. Perhaps he's capable of understanding the issues, but I don't know the man to take advice from anyone. That having been said, he's almost as "qualified" as Rodney Glassman. Nobody is ever ready for the Senate.
Back in 2006, Nolan called global warming a "hoax", as though hundreds of scientific papers--of which I have read dozens--were simply made-up by their authors. That was a reckless and idiotic position, of the sort that totally undermined my confidence in the man's ability to have an honest opinion of anything, and a slander of many good people. There isn't a chance in hell he'll receive either my vote or my personal endorsement, unless he vocally comes clean on environmental issues and shows some respect for science. That is to say, unless I see a different Nolan, I'm not voting for Nolan. Jeff Flake, a good modern classical liberal around whom there was a Senatorial "buzz" before it became clear that McCain wouldn't retire, supports a revenue-neutral carbon tax, but in the Libertarian Party, it's exceedingly rare that the grown folks are in charge. I'd love for Nolan to show the seriousness and command of the issues of Flake, but I've learned not to expect to be impressed by 3rd Party candidates.