This statement is True.
Political parties serve as the primary channels of political representation. In democracies, parties seek to obtain power through elections. Members of various parties contest elections as candidates of their respective parties.
During the election, the parties present before the voters a programme based on their ideology and promise them that this programme would be implemented if elected to power. Thus, the aspirations and wishes of the voters are represented in the decision-making process through the channel or the medium of a given political party.