He’s a dad who lost a son. A man who battled cancer (twice). A politician who lived through January 6. And yet somehow he’s still smiling (and occasionally crying, too).

IT’S JUST AFTER 7:00 a.m. on a Friday morning in March, and Representative Jamie Raskin has decided that he wants to drive himself to chemotherapy. Once he starts his five-drug chemo cocktail, he won…