American Research Group:
Hillary Clinton leads Barack Obama among self-described Democrats 47% to 42%. Obama leads Clinton among self-described independents and Republicans 24% to 71%. Obama leads among men 55% to 29% (47% of likely Democratic primary voters) and Clinton leads among women 54% to 42%. Clinton leads Obama among white voters 51% to 40% (53% of likely Democratic primary voters), Obama leads Clinton among African American voters 76% to 17% (22% of likely Democratic primary voters), and Clinton leads Obama among Latino voters 44% to 42%.

While this is good news (for Obama supporters), it is quite an aberration. Rasmussen
still has Senator Clinton up by 16%.
Given the
current delegate count and
proportional allocation of delegates, I'd call anything within 10% in both Ohio and Texas victories for Obama. If he can split the delegates in those two states, or carry them, there is no legitimate path to the nomination for Senator Clinton.
Update:
Election Inspection has a great rundown of how delegates are allocated in Texas. It is a very confusing process, but
EI explains it well.
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