Of the 3 possibilities for granting pardon (Obama, Clinton and Trump), the only real chance for Snowden is Obama.
Yep. I'd put it as zero with Clinton, non-zero but statistically insignificant with Trump, and 25% with Obama.
I'm not sure but I can imagine him saying that at some point. Still, I'd put him at non-zero because he doesn't have the same political baggage that Clinton would worry about.