The Kentucky resident today sat for her fourth Senate confirmation hearing, following stints at the Transportation and Labor departments starting in the mid-80s. Chao, who happens to be married to Senate Majority Leader Mitch McConnell, is the ur-Washington bureaucrat, a woman described by those on both sides of the aisle as a longtime, competent doer. Not the sort of hoodie-wearing early adopter to embrace world-shaking visions of the future.

And yet, her performance this morning left autonomous vehicle advocates—who fancy themselves as sitting on the bleeding-edge—quietly cheering. "I think today was actually a really good indication that she's going to keep moving in a positive direction," says Jamie Boone, who oversees government affairs at the Consumer Technology Association.