A comedian’s 11-minute act at Madison Square Garden last week was meant to rally Trump supporters. Instead, Tony Hinchcliffe’s remark calling Puerto Rico a “floating island of garbage” forced the Trump campaign on the defensve amid a tight race for the White House with Democratic opponent Kamala Harris. Will a sour campaign joke cost Trump dearly in terms of Latino voters, especially in the swing state of Pennsylvania, home to nearly half a million Puerto Ricans? Sanjay Suri reports