WASHINGTON, DC - JANUARY 20: Sen. Bernie Sanders (D-VT) (L) and Sen. John McCain (R-AZ) arrive on the West Front of the U.S. Capitol on January 20, 2017 in Washington, DC. In today's inauguration ceremony Donald J. Trump becomes the 45th president of the United States. (Photo by Chip Somodevilla/Getty Images)
WASHINGTON, DC - JUNE 09: Democratic presidential candidate Sen. Bernie Sanders (D-VT) (L) walks with President Barack Obama (R) through the Colonnade as he arrives at the White House for an Oval Office meeting June 9, 2016 in Washington, DC. Sanders met with President Obama after Hillary Clinton has clinched the Democratic nomination for president. (Photo by Alex Wong/Getty Images)
WASHINGTON, DC - SEPTEMBER 20: (L-R) Sen. Lindsey Graham (R-SC), Sen. Kelly Ayotte (R-NH), Sen. John McCain (R-AZ) and Sen. Ted Cruz (R-TX) hold a news conference about military assistance to Israel at the U.S. Capitol September 20, 2016 in Washington, DC. Graham is threatening to stall approval of an agreement on military assistance between the U.S. and Israel by introducing legislation that would boost the aid above what the countries agreed on. (Photo by Chip Somodevilla/Getty Images)
WASHINGTON, DC - SEPTEMBER 20: (L-R) Sen. Lindsey Graham (R-SC), Sen. Kelly Ayotte (R-NH), Sen. John McCain (R-AZ) and Sen. Ted Cruz (R-TX) hold a news conference about military assistance to Israel at the U.S. Capitol September 20, 2016 in Washington, DC. Graham is threatening to stall approval of an agreement on military assistance between the U.S. and Israel by introducing legislation that would boost the aid above what the countries agreed on. (Photo by Chip Somodevilla/Getty Images)
