vote

Respected scholars, As-salamu `alaykum. I am a Muslim living in Canada. Why should Muslims vote? Jazakum Allahu khayran.

Is there any evidence in the Shar`iah to say that we cannot vote for a non-Muslim candidate? Some Muslims believe it is haram to vote for such people because the Prophet (peace and blessings be upon him) did not do it nor did his Companions.