The crossword solution for the term 'Party Headliners' is 'DEMS, ' which stands for Democratic Party. The Democratic Party is one of the two major political parties in the United States, and it is the oldest existing political party in the world. The Democratic Party has been a major force in American politics since its founding in 1828, and it has held the majority of seats in Congress for most of the past century. The Democratic Party is known for its progressive policies and its commitment to social justice.