Expand Social Security Caucus

The Expand Social Security Caucus is a left-wing congressional caucus in the United States House of Representatives and United States Senate, consisting of members that advocate for the expansion of Social Security. It has 19 members in the Senate and 115 in the House, all deriving from the democratic caucus’ of both chambers.
According to Senate co-chair Bernie Sanders, the group was formed partly in response to President Donald Trump's recent claims that Democrats "want to destroy Social Security".