The main purpose of this legislation, known as the Endorsement Transparency Act, is to ensure that labor unions consult their members before endorsing a presidential candidate. This aims to promote transparency and accountability within unions, allowing members to have a say in the political endorsements made on their behalf. Key provisions of the Act require that any labor organization must conduct a poll of its members regarding their support for a presidential candidate before making an endorsement. Additionally, the results of this poll must be shared with all members of the organization.