AUSTIN -- So many people turned out to vote in parts of Texas that some polls stayed open -- hours after the 7 p.m. scheduled closing time.
The Associated Press reports some polling places in the Houston
area were open past 11 p.m. (central time).
AP reports Barack Obama and Hillary Rodham Clinton saw their best results in parts of the state where they spent the most time campaigning - Clinton in predominantly Hispanic South Texas and Obama in metro areas and Austin.
Exit polls showed that Obama won heavy margins among black voters, with a nearly 6-to-1 edge.
Meanwhile, Texas gave John McCain the delegates he needed to clinch the GOP presidential nomination with a victory over Mike Huckabee.
U.S. Senator John Cornyn easily won the GOP nomination for a chance at another term.