From a press release from Congresswoman Sheila Jackson Lee:
I was very concerned when I was informed of multiple incidents in which voters in predominately minority neighborhoods of my congressional district were intimidated and harassed. These incidents were documented by both the electronic and print media.
Accordingly, I shared my concerns with the Department of Justice and the Harris County Attorney’s office, who are investigating these incidents. I even visited with some of these voters who experienced intimidation and went to polling locations to view firsthand the way voters were being treated. The right to vote is a fundamental right enshrined by our Constitution, and my interest is to ensure that every person’s right to vote is protected.
You can read the Congresswoman's letter here (PDF). It is similar to a letter Rep. Sylvester Turner had sent previously.
The voter intimidation scheme has been featured prominently -- almost daily -- in the Houston TV market. Here's one story:
The best sources for this are the American Independent, Off the Kuff, and Talking Points Memo. A round-up of their stories are linked below, for further reading: