Obama’s DNC speech about President Trump was unprecedented, analyst says

Rich Lowry, editor of the conservative National Review, and Claire McCaskill, former Democratic senator, join TODAY to comment on the third night of the Democratic National Convention. McCaskill says that Kamala Harris did a good job letting people know “who she is and where she came from,” and Lowry calls her speech a “good introduction.” McCaskill also praises former President Obama’s “towering and sobering” speech, and Lowry says “we’ve never heard on president talk about another” as Obama did about Tr