BC-US--Winter Weather-Te, 0729
Contributed by NAMPA / Associated Press.
Top board leaders resign after deadly Texas power outages<
Five board leaders of Texas' embattled power grid operator are resigning<
AP Photo transref:TXMO109, transref:TXDP112<
Eds: EDITS: This story has been updated with Hepper declining comment, and adds details about the letter. The summary has also been updated. With AP Photos.<
By PAUL J. WEBER and DAVID KOENIG<
AUSTIN, Texas (AP) _ Top board leaders of Texas' embattled power grid operator said Tue ...