In court documents, federal lawyers complained that lawyers representing Texas are filing repeated motions to keep Texas lawmakers from having to testify and turn over documents. Last week Texas lost one of those requests and now legislators must testify about the law, which requires voters to present a government-issued identification card to cast their ballot.
Republicans say the law is necessary to prevent fraud, but Democrats say it will prevent the poor and the elderly from voting.
The U.S. attorney general's office had agreed to a July 9 trial date, but after Texas fought subpoenas they say they now need more time.
