In his old life, Mark Kelly piloted Navy fighter jets and orbited Earth hundreds of times as a NASA astronaut. Then, about a decade ago, he gave it all up, not long after his wife, U.S. Congresswoman Gabrielle Giffords, was shot and nearly killed by an assassin in Tucson. Following Giffords' recovery, the pair built a gun-safety nonprofit that, among other things, backed political candidates that supported safer firearms laws. Now, Kelly himself is one of those candidates. A Democrat, he's challenging Republican Martha McSally in November for the U.S. Senate seat McSally was appointed to following the 2018 death of John McCain. Unlike McSally — who, in loudly and frequently proclaiming her support for President Trump, exudes an aura of combative partisanship — Kelly projects a brand of common-sense centrism that's more in line with previous Arizona senators like McCain and Jeff Flake. The political sands out here in the desert are always shifting, and it's too early to tell whether moderate politics in Arizona are fully a thing of the past. But so far, so good: As of this writing, Kelly's up comfortably in the polls.