Trump reportedly sent target letter by prosecutors in classified documents case

Guests: George Conway, Renato Mariotti, Sarah Longwell, Dance Wallace-Wells, Andrew Marantz New activity in the Florida grand jury amid reports that the former president was told he is a target of the investigation. Plus, first Christie, now Pence—will attacking the frontrunner have any effect on a Republican electorate? Plus, new evidence of the ongoing threat to democracy from an old Trump world figure. And halted flights, cancelled games and tens of millions breathing toxic air: David Wallace-Wells on the unmistakable consequences of not doing enough to combat man-made climate change.