Today's must-reads: June 20

Posted by Campaign Connection editor on

Presumptive Republican nominee Donald Trump's campaign manager, Corey Lewandowski, leaves the campaign. NPR investigates the perils of talking politics at work and questions whether Trump may have squandered an advantage over presumptive Democratic nominee Hillary Clinton. 

PBS NewsHour GOP has nominated an 'outsider' for president before GOP has nominated an 'outsider' for president before