Hillary Clinton has a new ad running in Texas, touting her work to secure health benefits on behalf of National Guard veterans:

Given her losses this past weekend and in the Potomac, plus expected defeats in Wisconsin and Hawaii, Hillary has made the March 4 contests in Ohio and Texas, where she currently leads in the polls, into her new firewalls. Whether she can win big enough victories to undo Barack Obama's overall lead remains to be seen.

(Via Ben Smith)