Here's McAllister's full statement:
The past few weeks have been a trying time for my family. As I've said before, there's no doubt I've made a mistake. I've failed those I care most about and let down the people who elected me to represent them. I take full responsibility for this personal failure and I'm truly sorry for what I've done. I have taken this time to reconcile with my wife and kids and I'm forever grateful for their support and forgiveness. The people of the Fifth District of Louisiana need and deserve a voice in Washington. Today, I am announcing that I will not seek re-election, but I will continue to be that voice and will uphold the office to which I was elected to serve for the remainder of my term.