Answer: read this I think you will know the answers
Role of political parties A political party brings together people with the same political ideas. By taking part in an election, parties hope to get as many of their members as possible into a representative body, like parliament or a municipal council. At the same time they try to hold as many posts as possible in the government, or in the municipal or provincial executive. Political parties have various functions. One is promoting the interests of their voters. They also draw up party programmers. Citizens can join political parties, enabling them to help shape the party programme.
