Rosalind Helderman, Washington Post national political investigations reporter (who used to cover Virginia politics) and Jamelle Bouie, chief political correspondent for Slate, fill us in on Democratic vice presidential nominee, Senator Tim Kaine.

Martin O'Malley, an early contender in the presidential race, former mayor of Baltimore and former governor of Maryland (D), talks about the dismissal of all six officers in the Freddie Gray case and the speech he gave last night at the Democratic National Convention.

"We would have a much more meaningful conversation if we had a national standard for reducing police involved shootings," said O'Malley.

"Republicans talk about taking the country back, to me they're talking about taking the country back in time," said Steve Sweeney, New Jersey Senate President, on what's at stake for New Jersey and the country in this presidential election.

Jaime Harrison, first African American chair of the South Carolina Democratic Party, talks about black voters and the roll of the Democratic Party in lieu of the DNC email scandal.