"Harris County Tax Assessor Collector [and voter registrar] Leo Vasquez accused a nonprofit group of submitting thousands of bogus voter registration applications in recent months in what he said appears to be a campaign to taint the voter rolls.

Vasquez said his office has received thousands of duplicate applications, including cases in which the office has received six applications for the same person. Other irregularities he cited in the more than 25,000 applications submitted by Houston Votes include cases of underage applicants and people who identified themselves as noncitizens.

"The integrity of the voter roll of Harris County, Texas, appears to be under an organized and systematic attack by the group operating under the name Houston Votes," Vasquez said."