Got info?
There is of course enormous amounts of information out there on all the candidates, particularly those that have been in office for a while. Brady has been a congresscritter from the 8th district since '96 so he has a sizeable voting history: TEXAS ON THE POTOMAC did a nice job of putting much of it on a single page -- with outside links.
The only opponent I'm aware of in the primary is a newcomer fresh out of the oven, Tyler Russell. He appears to be a decent young man but IMHO he's in a bad district to try to knock off another Pubbie with a good voting record AND who typically garners 65% to 70% of the vote in the general elections.