Yesterday, the International Association of Fire Fighters announced that they will not endorse a candidate for president — a blow to Kamala Harris, especially as the group traditionally backs Democratic presidential candidates. Coming on the heels of the Teamsters’ non-endorsement, what exactly is the status of organized labor’s relationship with the Democratic Party? Labor and immigration reporter Nick Niedzwiadek joins Playbook deputy editor Zack Stanton to discuss what it all means. That, plus big news about former President Barack Obama’s return to the presidential campaign trail.