The CPC has held Canadian power for nearly 10 years. The have favored looser environmental regulations in favor of more corporate incentives. PM Harper has also passed laws specifically targeting Islamic beliefs and traditions, such as forbidding a niqab from being worn when swearing an oath of citizenship.
The CPC has likely had an easy time remaining the party in power in part because of the the two liberal parties that split the voters. But this election is the closest in a long time and many Canadians are looking for change. Get out there and vote