Texas Lt. Gov. David Dewhurst is calling for an investigation after a video showed what appears to be a data-mining operation attached to a Democratic voter registration drive. In a letter to Texas Secretary of State Nandita Berry, Dewhurst writes that he is outraged by the video of Battleground Texas organizer Jennifer Langoria admitting that the group uses personal information that it gleans from its voter registration drives in Texas. Dewhurst calls for the Texas secretary of state to hand complaints about Battleground Texas’ conduct to Texas Attorney General Greg Abbott.

In the letter, Dewhurst writes:  ”It appears that representatives of Battleground Texas were either official registrars who misused personal voter information, or they unlawfully posed as official voter registrars to trick people into handing over personal information. Either of these actions is a violation of Texas law.”

“In my view, the seriousness of this issue merits immediate referral to the Attorney General’s office,” Dewhurst writes.

Battleground Texas is providing much of the field operations for Democrat Wendy Davis’ campaign for governor. Davis has yet to comment on the video or the allegations.

Update: State Sen. and attorney general candidate Ken Paxton is also calling for an investigation.