He did just that, thanks to a little help from the Alamo Drafthouse, which posted a short PSA from the former fictional POTUS on their YouTube account on the 4th of July. The video, which is just over a minute long, begins with Bill Pullman playing with a toy fighter jet (not unlike the one his character flies in Independence Day) and sharing his thoughts on the historic holiday:
Article source: https://www.cinemablend.com/news/2549507/bill-pullmans-independence-day-themed-psa-tells-people-to-wear-masks