While the left and right go at it this election cycle, there are more political dog t-shirts than I've ever seen before. Pet retail is a booming business, perhaps the booming business in the U.S. right now, so it's a great time to get your leftist ideas onto a dog's back. The 10 best left wing dog t-shirts were chosen for pithiness, as well as suitability to a dog's mindset. No dogs were harmed in this process. Righties, don't take your frustration out on the dogs.