Senator Ed Markey joins Chris Hayes to discuss his growing concerns around ICE abuses, the need to end qualified immunity of ICE officers, and accountability for federal law enforcement. Markey explains his push—alongside Rep. Ayanna Pressley—to repeal qualified immunity so families can seek justice when constitutional rights are violated, and he argues that recent ICE actions represent dangerous lawlessness driven from the top. He also weighs in on using congressional funding power to rein in DHS and ICE, saying Congress must draw a clear line to stop abuses and protect civil rights.