President Donald Trump is presented with a New England Patriots jersey from Patriots owner Robert Kraft, right, and head coach Bill Belichick during a ceremony on the South Lawn of the White House in Washington, Wednesday, April 19, 2017, where the president honored the Super Bowl Champion New England Patriots for their Super Bowl LI victory. (Susan Walsh/Associated Press)

President Donald Trump speaks on the South Lawn of the White House in Washington, Wednesday, April 19, 2017, during a ceremony where he honored the Super Bowl Champion New England Patriots for their Super Bowl LI victory. (Andrew Harnik/Associated Press)

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. (Pablo Martinez Monsivais/Associated Press)

President Barack Obama holds a New England Patriots team jersey, flanked by New England Patriots coach Bill Belichick, left, and team owner Robert Kraft, right, as he welcomed the Super Bowl Champion New England Patriots, Thursday, April 23, 2015, on the South Lawn of the White House in Washington, to honor the team and their Super Bowl XLIX victory. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama holds up a '12th man' banner for a group photo as he welcomes the NFL Super Bowl champion Seattle Seahawks football team to the East Room of the White House in Washington, Wednesday, May 21, 2014. The Seahawks defeated the Denver Broncos in Super Bowl XLVIII. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama and Baltimore Ravens head coach John Harbaugh, center, hold a Baltimore Ravens football jersey presented to the president during a ceremony on the South Lawn of the White House in Washington, Wednesday, June 5, 2013, where the president honored the Super Bowl XLVII champs. The Ravens defeated the San Francisco 49ers in Super Bowl XLVII. General Manager Ozzie Newsome is at right. (AP Photo/Evan Vucci)

Former Miami Dolphin's quarterback Bob Griese, left, holds a signed jersey with President Barack Obama and Hall of Fame coach Don Shula, forty-one years after their perfect football season as President Barack Obama honors the Super Bowl VII Champion Miami Dolphins in the East Room of the White House in Washington, Tuesday, Aug. 20, 2013. The 1972 Miami Dolphins remain the only undefeated team in NFL history. (AP Photo/Jacquelyn Martin)

President Barack Obama poses with New York football Giants, including captains, from left, Zak DeOssie, Justin Tuck, and Eli Manning during a ceremony on the South Lawn of the White House in Washington, Friday, June 8, 2012, to honor the Super Bowl XLVI Champions. (AP Photo/Charles Dharapak)

President Barack Obama is presented with a Green Bays Packers football jersey by quarterback Aaron Rodgers, left, during a ceremony honoring the Super Bowl XLV Champion Green Bay Packers, Friday, Aug. 12, 2011, on the South Lawn of the White House in Washington. At center is General Manager Ted Thompson. (AP Photo/Pablo Martinez Monsivais)

President Barack Obama stands with the 1985 Super Bowl XX Champions Chicago Bears football team during a ceremony on the South Lawn of the White House in Washington, Friday, Oct. 7, 2011.(AP Photo/Pablo Martinez Monsivais)

President Barack Obama stands with, from left: New Orleans Saints football quarterback Drew Brees, Saints part owner Rita Benson LeBlanc, the owner's wife Gayle Benson, and team owner Tom Benson, as he welcomes the 2009 NFL Super Bowl NFL Football Champions New Orleans Saints during a ceremony in the East Room of the White House in Washington, Monday, Aug. 9, 2010. (AP Photo/Charles Dharapak)

President Barack Obama, along with Pittsburgh Steelers Chairman Dan Rooney, center, and coach Mike Tomlin, pose with the Vince Lombardi Trophy and Super Bowl champion Pittsburgh Steelers, Thursday, May 21, 2009, in the East Room of the White House in Washington. (AP Photo/Charles Dharapak)

President Bush speaks on the South Lawn of the White House in Washington, Wednesday, April 30, 2008, during a ceremony honoring the Super Bowl XLII Champion New York Giants. (AP Photo/Manuel Balce Ceneta)

President Bush holds up a jersey with quarterback Peyton Manning, left, and head coach Tony Dungy during a ceremony honoring the NFL football Champions Indianapolis Colts on the South Lawn of the White House in Washington, Monday, April 23, 2007. (AP Photo/Gerald Herbert)

President Bush holds a cowboy hat given to him by Indianapolis Colts football team owner Jim Irsay, left, during a ceremony honoring the NFL Champion Indianapolis Colts on the South Lawn of the White House in Washington, Monday, April 23, 2007. (AP Photo/Gerald Herbert)

President Bush, center, poses with members of the 2006 Super Bowl Champion Pittsburgh Steelers in a ceremony in the East Room of the White House, Friday, June 2, 2006 in Washington. (AP Photo/Pablo Martinez Monsivais)

President Bush poses for a photo, flanked by New England Patriots owner Robert Kraft, left, Patriots coach Bill Belichick, right, and linebacker Teddy Bruschi, second from Bush's right, during a ceremony in the Rose Garden of the White House, Wednesday, April 13, 2005. (AP Photo/Susan Walsh)

President Bush, center, speaks after meeting with the 2004 National Football League champion New England Patriots, Monday, May 10, 2004, in the Rose Garden of the White House. (AP Photo/Ron Edmonds)

President Bush stands next to Robert Kraft, left foreground, owner of the Super Bowl champion New England Patriots and Patriots head coach Bill Belichick, holding the Super Bowl Trophy, as the Super Bowl champions are honored in the Rose Garden at the White House in Washington Tuesday, April 2, 2002. (AP Photo/Doug Mills)

President Clinton, left, and Denver Broncos owner Pat Bowlen hold the Vince Lombardi Trophy during a ceremony at the White House where the president honored the Super Bowl XXXII champions. Super Bowl Most Valuable Player Terrell Davis is at right. (AP Photo/Greg Gibson)

President Clinton holds a Dallas Cowboys jersey bearing Emmitt Smith's number he received from the Cowboys running back, left, during a ceremony at the White House Tuesday Feb. 13, 1996 where the president honored the Super Bowl XXX champions. (AP Photo/Ruth Fremson)

Dallas Cowboys running back Emmitt Smith, Most Valuable Player in the 1994 Super Bowl, right, shows off a larger-than-life replica of a Super Bowl ring to President Bill Clinton, at the White House in Washington, March 1, 1994. Cowboys owner Jerry Jones, left, and head coach Jimmy Johnson, center, look on. The president held a ceremony to honor the Super Bowl Champions. (AP Photo/Marcy Nighswander)

President Bill Clinton poses with the victorious Cowboys at the White House after they defeated the Bills 52-17 in the Super Bowl XXVII game of the Dallas Cowboys vs the Buffalo Bills played at the Rose Bowl in Pasadena, California on January 31, 1993. Super Bowl XXVII - Buffalo Bills vs Dallas Cowboys - January 31, 1993 (National Football League)

President Bush, holding a football autographed by the team, listens to Super Bowl champion Washington Redskins coach Joe Gibbs in the Rose Garden of the White House Wednesday, April 23, 1992. Bush hosted a barbeque for the team. (AP Photo/Doug Mills)

President and Mrs. Bush share a laugh with San Francisco 49ers quarterback Joe Montana, center right, linebacker Michael Walter, center left, and other team members during a meeting with the Superbowl champions in the White House in Washington, Tuesday, Feb. 27, 1990. (AP Photo/Barry Thumma)

U.S. President George Bush welcomes the Super Bowl champions San Francisco 49ers to the White House as quarterback Joe Montana offers a football to the president in Washington, D.C., Feb. 3, 1989. From left are Bush, Montana, Coach Bill Walsh and Jerry Rice, who also gave the president a football. (AP Photo/Marcy Nighswander)

Quarterback Doug Williams of the Washington Redskins presents President Reagan with a Super Bowl XXII football during ceremonies honoring the football champions at the White House in Washington, D.C., Feb. 4, 1988. The Redskins defeated the Denver Broncos 42-10, at Jack Murphy stadium in San Diego, Calif. (AP Photo/Doug Mills)

President Jimmy Carter holds a Pittsburgh Pirates cap and a Pittsburgh Steelers 'terrible towel' as he meets both champion teams at the White House in Washington on Feb. 22, 1980. The towel is a good luck symbol for the Steelers. At right is Steelers' running back Becky Bleier. (AP Photo/Harvey Georges)

U.S. President Jimmy Carter shakes hands with Washington Redskins center Ted Fritsch as he arrives at the White House in Washington, Monday, Sept. 3, 1979 after a trip to Plains, Ga. At center is Redskins Ricky Thompson. (AP Photo/Wilson)

President Richard M. Nixon, right, talks with Green Bay Packers quarterback Bart Starr on Feb. 13, 1969, at the White House in Washington. Nixon and Starr, who shared the same birthday Jan. 9, 21 years apart, became acquainted when the quarterback campaigned for the presidential candidate in 1968. Nixon was a big sports fan, and a particular admirer of the Packers. Nixon encouraged Starr, recovering from shoulder surgery, on July 30, 1971 in a taped conversation from the Old Executive Building recently released by the National Archives. (AP Photo/Harvey Georges)

In this Jan. 2, 1973, file photo President Richard Nixon, holds a souvenir football he received after the previous bowl game, and Washington Redskins coach George Allen appear in the White House Rose Garden to celebrate Redskins win over Dallas for the National Football Conference title. The NFL, which is trying to maintain its TV blackout of home games that don't sell out, missed an opportunity 40 years ago to keep an even more restrictive policy in place when it rebuffed an effort by Nixon to at least televise playoff games. Nixon gave his attorney general a message for NFL commissioner Pete Rozelle: "If you make the move, for these playoff games, we will block any, any, legislation to stop anything else. I will fight it personally and veto any, any, legislation," he said. (AP Photo/File)