Mitchell Ferman | The Texas Tribune

Texans were asked to cut back on their electricity use for a week because of “tight” power grid conditions, according to ERCOT officials. They still haven’t said what caused the plant outages.

“He has conducted himself shamelessly, and I think he has done this because he believes it's the only way, the only chance that he has to win the Republican nomination for president,” Joaquin Castro said.