Congress is working on the Supplemental Appropriations bill. One item under discussion is the “Keep Our Educators Working Act.” While this act targets many necessary areas (K-12 education, Pell Grants), it does not have any provisions to stop layoffs in higher education.
You can find out more about the Act as proposed, and get some talking points about proposed changes, on the Government Relations section of the website of the national AAUP.
To get contact information for your member of Congress, you can look it up on the federal government’s information website.