WASHINGTON, DC - SEPTEMBER 07: Senate Minority Leader Harry Reid (D-NV) (C) speaks with a reporter following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Democratic vice presidential candidate Sen. Tim Kaine (D-VA) took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Democratic vice presidential nominee Sen. Tim Kaine (D-VA) leaves the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Kaine took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of their seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Senate Minority Leader Harry Reid (D-NV) speaks during a news conference following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Democratic vice presidential candidate Sen. Tim Kaine (D-VA) took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Senate Minority Leader Harry Reid (D-NV) (C) holds a news conference following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Democratic vice presidential candidate Sen. Tim Kaine (D-VA) took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Senate Minority Leader Harry Reid (D-NV) speaks during a news conference following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Democratic vice presidential candidate Sen. Tim Kaine (D-VA) took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Democratic vice presidential nominee Sen. Tim Kaine (D-VA) leaves the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Kaine took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of their seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Senate Majority Leader Mitch McConnell (R-KY) (R) is joined by Sen. John Barrosso (R-WY) (L) and Senate Majority Whip John Cornyn (R-TX) during a news conference following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. The GOP senators answered reporters' questions following their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Sen. Charles Schumer (D-NY) (L) listens to Senate Minority Leader Harry Reid (D-NV) during a news conference following the weekly Senate Democratic policy luncheon at the U.S. Capitol September 7, 2016 in Washington, DC. Democratic vice presidential candidate Sen. Tim Kaine (D-VA) took a break from the campaign trail to join his fellow Democratic senators for their first policy meeting since the end of a seven-week break. (Photo by Chip Somodevilla/Getty Images)