The former Virginia senator and Navy Secretary before that has become the fifth Democrat to enter the presidential campaign, following Hillary Clinton, Bernie Sanders, Martin O'Malley and Lincoln Chafee.
Webb is probably, overall, the most socially conservative of the candidates, as shown by his stance on some of the issues. He is talking about class-based economic issues more than Clinton, and with more conviction, but he was arguably the last to the gay marriage table of the five Democrats, and by some degree. He opposed the Iraq War, but that is about the only other plus, and, unlike Sanders, or Chafee, wasn't in the Senate to cast a "no" vote on it.
He's got a bad environmental record, and he's made no real effort to make it better. And, his stance on Confederacy-related issues, as well as the flip side of the image of promoting class-based affirmative action, will kill him with black Democrats.
I've not yet voted on my own poll, shown at right, but, assuming Greens don't need my help and I were to vote in the Democratic primary, I would NOT vote for him ahead of Clinton.