Not if he's a Canadian citizen.
What makes you doubt that if Mexicans, Chinese, dead people, and Kenyans voted for Obama? Are you still under the impression our elections are for Americans only? Why do you think Dems fight "picture ID" so hard? I bet you even think Obama won "fair and square"? With people pre marking ballots in nursing homes and setting Black Panthers with weapons outside of voting places, I'm sure all was fair.