A US president is about to speak at SXSW Interactive for the first time. President Barack Obama -- who's known to be relatively tech savvy, at least as far as presidents go -- will participate in an interview during a keynote address today at the annual tech fest in Austin, Texas. He'll be discussing civic engagement with Evan Smith, the editor-in-chief of the Texas Tribune, though we're guessing the conversation will cover a whole array of topics (perhaps the current electoral race). If you can't be there in person, you can tune in for our coverage here or just watch the whole thing unfold in the livestream embedded below.