Lawrence: Future generations may laugh at Trump’s madness. But first, we will have to survive it.

Tonight on The Last Word: A federal judge temporarily blocks Donald Trump’s mail ballot rule. Also, Trump tries to claim victory as the Iran war nears six months. Plus, a Texas ICE facility faces scrutiny over its conditions. And Sen. Susan Collins tries to distance herself from Trump’s failures. Rep. Jamie Raskin, Sen. Alex Padilla, Rep. Greg Casar, and Troy Jackson join Lawrence O’Donnell.