text:  This is All Things Considered from NPR News. I'm Juana Summers in Washington. And I'm Elsa Chang in Culver City, California. Well, it remains to be seen what motivated the shooter. The assassination attempt on former President Trump was political violence. And this violence came, of course, after years of escalating rhetoric in this country, in political speeches, in everyday communication, rhetoric that invokes violent language and imagery to raise the stakes for voters.