Primaries hold significant importance in elections as they determine each political party's nominee for the general election. These preliminary elections allow party members to express their preferences among candidates vying for their party's nomination, promoting internal democratic processes. Primaries can be open or closed, affecting voter participation and candidate strategy. Successful candidates build support and establish a campaign platform that resonates with the electorate. Ultimately, primaries shape the political landscape by influencing which candidates advance to the general election, impacting the overall outcome of the electoral process.