Rayner supports the business affairs of Michael Meehan and of the Squared team across strategic planning, operations, and external deliverables. She brings hands-on experience from statewide and national political and advocacy campaigns, including work with consulting firm 50+1 Strategies during the 2022 general election, where she managed print media production and prepared candidate briefing materials for Democratic candidates. Rayner has also previously supported strategic communications efforts at Breakwater Strategy for clients across entertainment, crypto, and private equity.

She began her communications career on a Maryland General Assembly race in her Baltimore County hometown. Rayner joined Squared as Executive Assistant to Michael Meehan after graduating from the George Washington University with her BA in English wand a minor in Political Science.