The short answer is no, Chewy does not sell Authority dog food. However, the long answer is a little more complicated.
In short, Chewy does sell a variety of pet food products, but Authority dog food is not among them. Instead, Chewy sells brands such as Science Diet, Wellness, and Taste of the Wild.
Authority dog food is made by a different company than the brands sold by Chewy. Authority dog food is made by Nutrish, and Chewy does not carry it.
So, in short, Chewy does not sell Authority dog food, but you can find it on Amazon.com.