It's possible. However, he will uncover many other crimes Trump has committed.
BrooklynBaby brings up a salient point. If Mueller comes up with diddly in respect to the collusion claims, Trump's hoaxy-hoax bleatings will be vindicated. Many also buy into his climate change hoax nonsense, as well as his latest hoax claims regarding the Kavanaugh accusers. Christ, 40+ percent already buy into whatever crap Trump ***** out; if the democrats don't find a win, and soon, I fear the blue wave they imagine is only a product of their imaginations.