IL SB1330

Requires political advertisements in radio, television, video, print, and mass mailings to disclose the top 3 identifiable contributors who made the largest cumulative contributions, with specific formatting requirements for each medium.

Establishes disclosure thresholds of $10,000 for statewide campaigns and $2,000 for local campaigns; contributors meeting these thresholds over an 18-month period must be identified in advertisements.

Mandates political committees with cumulative contributions meeting disclosure thresholds establish and maintain disclosure websites listing the top 10 identifiable contributors and providing links to complete funding information updated within 3 business days.

Prohibits political committees from using other committees or intermediaries to avoid disclosing major funding sources, and allows the State Board of Elections to adopt rules for advertisement types not specifically covered.

Requires persons making $10,000+ payments for electioneering communications to file reports with the Secretary of State within 48 hours, disclosing payer information and amount.