Markos highlights a Democratic challenger in the Arizona 3rd who is, in his words, a "libertarian Democrat."

Lord is essentially calling himself a Libertarian Democrat. He's socially liberal, but as a tax lawyer, he's promising to clean up the tax code to make it more business friendly. He's not an anti-immigrant zealot, unlike just about the entire Arizona Republican delegation except for Sens. Kyl and McCain (who are now persona non grata in many GOP circles).

Here's more on his views:

But Lord argues that his background and a political philosophy that he described as “close to libertarian,” make him an acceptable choice for district Republicans. Twenty percent of his donors have been registered Republicans, he noted.

“I’m not what many would call an ultra-liberal Democrat. I’m a tax lawyer, I’ve represented business interests and real estate developers for 25 years, I understand the tax code, I know that it needs to be simplified for the benefit of business and won’t hurt ordinary taxpayers in the process of doing so,” he said.

Socially, Lord’s views are less conservative. He supports funding stem cell research and is pro-abortion rights, and said Shadegg’s stance on those issues — as well as on minimum wage — make him out-of-step with the district’s voters.

Lord supports “comprehensive immigration reform” that would secure the border but also include a guest worker provision, and decried as draconian recently passed legislation in Arizona that establishes aggressive sanctions against employers who utilize illegal immigrants.

“I’m concerned that if we take action either to enforce the border or to go after employers without at the same time implementing a workable guest worker program, we’re going to take entire industries and shut them down,” Lord said.

Check out Bob Lord's website. He's certainly a candidate I will continue to follow.