This phrase designates a specific promotional item connected to a political rally. The item in question is a rally towel, typically imprinted with imagery or text related to the political figures involved in the event. For example, a rally towel distributed at an event featuring Donald Trump and J.D. Vance might bear slogans or graphics supporting their respective political campaigns.
Such items serve as tools for galvanizing support at political gatherings. They create a visual display of unity among attendees and provide a tangible keepsake of the event. Historically, promotional items like these have been used to build enthusiasm and reinforce messaging within a specific demographic or political base. The specific utility depends on the specific target audience and objective for that tool.