Texas Democratic activist Glenn Smith writes on MyDD:
The campaign in Texas is close. Delegates selected by popular vote out of the 31 Senate districts will probably be split more or less evenly. This is due in large part to the fact that 15 of those districts have 4 delegates to award. A candidate would have to get more than 62.5 percent of the vote in those districts to win a 3-to-1 split. The most likely outcome is a 2-2 split. In addition, Obama may have a slight advantage in that the districts with the largest number of delegates, Austin and inner city Houston and Dallas, are viewed as Obama strongholds. Still, just about every model shows an even split of primary vote delegates, no matter who wins or loses the popular vote. This is just because the vote will be close.
The Clinton campaign strategy is to justify taking the fight beyond Texas even if they fall further behind Obama in the national delegate count. To do that, they must cast doubt over the fate of the 67 delegates that will be chosen at the caucus level. Hence, their tough positioning in phone calls with Texas Democratic Party officials and others involved in the primary here.
In a few minutes, the Obama campaign will hold a conference call to discuss what they're calling the "Clinton lawsuit threat."