It seems she doesn't want to talk about her personal history since the truth came out. Instead, she wants to talk about guns. That is, Wendy Davis, a Democrat running for governor of Texas who has in the past tried to bar gun shows from public property, wants to get the gun vote.
Since she tried to change the subject, I will point out that according to her divorce records, the court entered a temporary restraining order at her husband's request preventing her from "using illegal drugs or consuming alcohol within 24 hours before or during" her contact with her children.
In the context of firearms I would note that such an order, entered during divorce proceedings without an evidentiary hearing, should be taken with a grain of salt. Normally, however, such orders are issued on the basis of "He's a man, and I'm a woman, and we're arguing a lot due to the divorce, and he's scary when he gets angry at me and yells at me." If Wendy's ex-husband, kind-hearted enough to pay her way through law school, felt it necessary to request a court order Wendy not to conduct her child custody or visitation while drunk or high... well, where there is smoke, sometimes there is fire.