Hundreds of applications for mail-in ballots are being rejected by local election officials in keeping with the state's new election integrity law. The new law says absentee voters must include their driver's license number, their state ID number, or the last four digits of their Social Security number on their ballot applications. The rejected applications either lack this information or show a mismatch with the data the state has on file to verify voter ID. In Travis County, about half of the 700 applications have been rejected under the law.