Markey: Popularity of Packing Court Will Increase When It Strikes Down 'Historic, Progressive Laws'

On Thursday's broadcast of MSNBC's "All In," Sen. Ed Markey (D-MA), who has introduced legislation to add four Supreme Court seats, predicted that there will be "a public cry for a change in the numbers of the Supreme Court so that they cannot continue their undermining, their destruction of historic, progressive laws that have been put on the books."