I'm not buying the David vs Goliath scenario. In today's political envirnoment, it's Goliath vs Goliath. David is just some kid slinging pebbles.
That's what Goliath thought too.
We'll basically see what kind of equilizer impact net activism and venues such as YouTube can have on political campaigns.
I would argue Hunter's fair trade policy, coupled with his strong stance against illegal immigration, will be his strongest selling point - both in the primary and in the general election.
The problem with Duncan Hunter is that conservatives are looking for the next Ronald Reagan and I don't see the next Ronald Reagan coming from Congress. Congressman in general have too much baggage to successfully run for POTUS when you start reading the fine print of every bill and resolution they have supported or opposed and every C-Span speech they have given to an empty chamber in the middle of the night. In addition, Congressmen can come off as conservative or as liberal as they dare because they only have to pander to a few thousand voters to get elected. When they run for POTUS, however, they have to pander to a much broader base or they don't stand a chance.
IMHO, Hunter is going to have real problems that go beyond his appearance. As Dog Gone points out, his position on international trade is weak, and in my view, will appeal primarily to the Buchannan fringe. Hunter is also the King of Congressional Pork, and he has repeatedly broken the "Contract with America."