Patrick Healy reports for The New York Times:
Senator Hillary Rodham Clinton and her advisers increasingly believe that, after a series of losses, she has been boxed into a must-win position in the Ohio and Texas primaries on March 4, and she has begun reassuring anxious donors and superdelegates that the nomination is not slipping away from her, aides said on Monday.
Fair enough. On the other hand, Texas and Ohio combined have just a bit fewer delegates than do the Obama Weekend Sweep States plus the Potomac Primary states, so it's not clear that even a Texas and Ohio win would put her over the top. Meanwhile, as I noted this morning we haven't seen any polls from Texas or Ohio and the idea that Clinton is leading in those places is best on pure conjecture.