President Barack Obama holds up a Denver Broncos team football helmet as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama holds up a Denver Broncos team football jersey for a group photograph as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama holds up a Denver Broncos team football jersey, as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. Broncos Executive Vice President of Football Operations/General Manager John Elway is at left. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama shakes hands with quarterback Peyton Manning, right, as he welcomes the Denver Broncos Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama holds up a Denver Broncos team football jersey as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. Standing behind Obama is Peyton Manning. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama poses during a group photo with members of the Denver Broncos team football jersey, as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. Broncos head coach Gary Kubiak is at center, John Elway Executive Vice President of Football Operations/General Manager is at left. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama reaches out to shake hands with Denver Broncos quarterback Peyton Manning as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory.(AP Photo/Susan Walsh)

President Barack Obama, center, standing next to Annabel Bowlen, wife of Broncos owner Pat Bowlen, holds up a Denver Broncos team football jersey, as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory.(AP Photo/Susan Walsh)

President Barack Obama, center, standing next to Annabel Bowlen, wife of Broncos owner Pat Bowlen, holds up a Denver Broncos team football jersey, as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory.(AP Photo/Susan Walsh)

Denver Broncos' Peyton Manning, center, walks in with his teammates during a ceremony for the Denver Broncos Super Bowl Champions in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama holds up a Denver Broncos team football helmet, as he welcomes the Super Bowl Champions during a ceremony in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory.(AP Photo/Susan Walsh)

President Barack Obama speaks during a ceremony to honor the Super Bowl Champions Denver Broncos football team during in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Susan Walsh)

June 6, 2016 - Washington, District Of Columbia, U.S - President BARACK OBAMA, welcome the Super Bowl Champion Denver Broncos to the White House to honor the team and their Super Bowl 50 victory The event took place in the Rose Garden of the White House (Cal Sport Media via AP Images)

President Barack Obama speaks during a ceremony to honor the Super Bowl Champions Denver Broncos football team during in the Rose Garden of the White House in Washington, Monday, June 6, 2016, to honor the team and their Super Bowl 50 victory. (AP Photo/Susan Walsh)