Obama boosts Clinton; Kaine mocks Trump President Barack Obama speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
The Latest: Obama more optimistic about US future than ever President Barack Obama waves to the delegates before speaking during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
Convention: O'Reilly attacks critics; Trump's party crashing President Barack Obama stands with Democratic presidential candidate Hillary Clinton following Obama's speech at the Democratic National Convention from the Wells Fargo Center in Philadelphia, Wednesday, July 27, 2016. (AP Photo/Susan Walsh)
Obama boosts Clinton: Carry her like you carried me Democratic Presidential nominee Hillary Clinton hugs President Barack Obama after joining him on stage during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
Biden says Trump has 'no clue' about needs of middle class Vice President Joe Biden speaks during the third day session of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016. (AP Photo/Carolyn Kaster)
AP FACT CHECK: Warped claims in political hothouse Vice President Joe Biden speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
The Latest: Biden says Obama one of 'finest presidents' ever Vice President Joe Biden takes the stage during the third day of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016. (AP Photo/Paul Sancya)
VP nominee Tim Kaine urges voters to trust Hillary Clinton Democratic vice presidential candidate, Sen. Tim Kaine, D-Va., pumps his arm as he takes the stage during the third day session of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016. (AP Photo/Carolyn Kaster)
Obama boosts Clinton; Kaine mocks Trump Democratic vice presidential candidate, Sen. Tim Kaine, D-Va., takes the stage during the third day session of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016. (AP Photo/Matt Rourke)
The Latest: Ex-CIA chief says Trump taking Russia's side Former Defense Secretary Leon Panetta, speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
The Latest: Ex-CIA chief says Trump taking Russia's side Rear Admiral John Hutson (Ret.), speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/Paul Sancya)
Obama boosts Clinton; Trump talks emails and Russia Former Rep. Gabby Giffords, D-Ariz, addresses delegates alongside her husband Astronaut Mark Kelly (Ret.), during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/Mark J. Terrill)
The Latest: Gabby Giffords wants to say 'Madam President' Former Rep. Gabby Giffords, D-Ariz, and her husband Astronaut Mark Kelly (Ret.), exit the stage after speaking during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/Paul Sancya)
Obama boosts Clinton; Trump talks emails and Russia Christine Leinonen, the mother of Christopher "Drew" Leinonen, who was killed in the nightclub attack in Orlando, is joined on stage by Brandon Wolf, survivor of the nightclub attack in Orlando., and Jose Arraigada, survivor of the nightclub attack in Orlando., as she speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
The Latest: Tensions rise between Clinton, Sanders backers California Gov. Jerry Brown speaks during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/J. Scott Applewhite)
'Empire' producer Lee Daniels: Hillary Clinton knows me Director Lee Daniels, right, embraces Christine Leinonen, the mother of Christopher "Drew" Leinonen, who was killed in the nightclub attack in Orlando, after she spoke during the third day of the Democratic National Convention in Philadelphia , Wednesday, July 27, 2016. (AP Photo/Paul Sancya)
