Largely depends on the schools you're applying to, and also what score you get on the GRE, VCAT, or MCAT. It also depends on what school that 3.2 GPA is at, and how strong your recommendation letters are. If that GPA is in a tough, highly competitive top-tier program like the pre-vet program at Cornell University, your chances of admission are better than if that's at a low quality state school with a low-tier program where you'd be expected to be head and shoulders above the other students. Assuming non-spectacular testing results, and that you are in a low-tier undergrad program, you probably have a good chance at getting in to a second-tier vet program, and a small chance at a top-tier vet program; while your experience is impressive, your GPA would be at the very low end of what they normally admit. Your testing results and recommendation letters will likely be large factors in whether to overlook your lower GPA and admit you.