UNDATED -- Texans set a turnout record as Hillary Rodham Clinton won the state's Democratic presidential primary over Barack Obama.
The secretary of state's office says a least 3.5 million Texans -- by early Wednesday -- had cast ballots, with results still being tabulated. That already was about 28 percent of the 12.75 million registered voters in Texas.
State election officials had predicted overall turnout of about 3.3 million Texans, or 26 percent.
The previous Texas turnout record was 2.7 million, set in 1988.
But the higher turnouts also led to problems. Around midnight, there were still 15 to 20 people waiting in line to vote at a precinct at Nimitz High School in Houston. The site is in a predominantly black and Hispanic neighborhood.
Harris County election administrator Johnnie German says some people were not listed in the record books. In that case, election officials had to call the county clerk's office to see if those people were registered to vote.
There was also a big turnout at the location.