It looks like the President's El Paso speech was just the beginning. From The New Republic:
"President Barack Obama’s campaign is heeding the political siren song of Texas, telling supporters he hopes to make a real effort in a state where the growing Hispanic electorate has long raised — then dashed — Democratic hopes.
Obama’s 2012 campaign manager, Jim Messina, speaking to big-money Lone Star State Democrats at closed-door meetings in Austin and Dallas in March, predicted Obama could make a “serious play” in the cornerstone of GOP presidential politics, according to people in attendance."
Certainly, it remains extremely difficult for a Democratic Presidential candidate to carry Texas, but a strong effort by President Obama would constitute smart strategic planning. Texas is the 2nd most populous state, and demographics are trending purple. Imagine. California, New York, and Illinois are already deep blue and Florida is purple. Adding an up-for-grabs Texas to the mix would mean that none of the five biggest states are solidly Republican. Long-term trends are looking very sketchy for the GOP.