Pope Francis in D.C.

Pope Francis at U.S. Capitol

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U.S. Secretary of State John Kerry (R) talks with Pope Francis before the pontiff's speech to the U.S. Congress in Washington, D.C., September 24 2015.

Pope Francis at U.S. Capitol

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Pope Francis pauses in front of a sculpture of Spanish-born Franciscan Friar Junipero Serra in Statuary Hall at the U.S. Capitol in Washington D.C., September 24, 2015.

Pope Francis in Washington

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Crowds wait for the arrival of Pope Francis at the Capitol building for his address to Congress in Washington, D.C. on September 24, 2015.

Pope Francis in Washington

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Ruth Bader Ginsburg and other members of the U.S. Supreme Court arrive before Pope Francis addresses the joint session of Congress on September 24, 2014 in Washington, D.C.

Pope Francis addresses Congress

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Former Speaker of the House Newt Gingrich(L) and his wife, Callista, arrive before Pope Francis addresses the joint session of Congress on September 24, 2014 in Washington, D.C.

Pope Francis at U.S. Capitol

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Speaker of the House John Boehner (R-OH) (R) speaks with Pope Francis in the U.S. Capitol building before the Pontiff speaks to a joint meeting of Congress September 24, 2015 in Washington, D.C.

Pope Francis in Washington

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Pope Francis (C) is embraced by a man in the crowd as he departs the Vatican Embassy in Washington on the third day of his first visit to the United States, September 24, 2015.

Pope Francis in Washington

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Pope Francis celebrates Mass at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C. on September 23, 2015.

Pope Francis in Washington

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Members of the public watch as Pope Francis (not pictured) presides over a Canonization Mass for Friar Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C. September 23, 2015.

The canonization of Serra has been controversial for Native Americans.

Pope Francis in Washington

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Pope Francis celebrates the Canonization Mass for Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Junipero Serra was an 18th century Spanish Franciscan friar who founded a mission in Baja, California to bring Christianity to the indigenous population. This is the first-ever canonization by a Pope on U.S. soil.

Pope Francis in Washington

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People watch a television screen as Pope Francis presides over a Canonization Mass for Friar Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis arrives for the Canonization Mass for Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, DC., September 23, 2015.

Junipero Serra was an 18th century Spanish Franciscan friar who founded a mission in Baja, California to bring Christianity to the indigenous population. This is the first-ever canonization by a Pope on U.S. soil.

Pope Francis in Washington

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Pope Francis arrives for the Canonization Mass for Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception on September 23, 2015 in Washington, D.C.

Junipero Serra was an 18th century Spanish Franciscan friar who founded a mission in Baja, California to bring Christianity to the indigenous population.

Pope Francis in Washington

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Worshipers reach out to Pope Francis as he arrives to greet and bless seminarians, novices, and religious guests at the Basilica of the National Shrine of the Immaculate Conception September 23, 2015 in Washington, DC.

Pope Francis in Washington

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Priests attend the Canonization Mass for Friar Junipero Serra by Pope Francis at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis arrives for the Canonization Mass for Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception at the Basilica of the National Shrine of the Immaculate Conception September 23, 2015 in Washington, DC. T

Pope Francis in Washington

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Pope Francis (R) is touched by a nun as he arrives in the Basilica of the National Shrine of the Immaculate Conception for a Canonization Mass for Friar Junipero Serra in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis heads outside to preside over the canonization Mass for Friar Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception at the Basilica of the National Shrine of the Immaculate Conception September 23, 2015 in Washington, DC. The pope began his first trip to the U.S. at the White House and continues on in Washington tomorrow, making an address to a joint meeting of U.S. Congress.

Pope Francis in Washington

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Pope Francis arrives for the Canonization Mass for Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception on September 23, 2015 in Washington, DC. Junipero Serra was an 18th century Spanish Franciscan friar who founded a mission in Baja, California to bring Christianity to the indigenous population.

Pope Francis in Washington

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Pope Francis walks to a Canonization Mass for Friar Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis presides over a Canonization Mass for Friar Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Pope Francis in Washington

KEVIN LAMARQUE/REUTERS

Pope Francis dispenses incense while celebrating Mass at the National Shrine of the Immaculate Conception for the canonization of Friar Junipero Serra in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis arrives at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C. on September 23, 2015.

Cathedral of St. Matthew

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Pope Francis attends the Midday Prayer Service at the Cathedral of St. Matthew on September 23, 2015 in Washington, D.C.

Bishops listen to pope

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Bishops listen to Pope Francis speak during the Midday Prayer Service at the Cathedral of St. Matthew on September 23, 2015 in Washington, D.C.

The Pope will celebrate Mass on the grounds of the Basilica of the National Shrine of the Immaculate Conception.

Pope Francis in Washington

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Pope Francis arrives for the Midday Prayer Service with more than 300 American bishops at the Cathedral of St. Matthew the Apostle in Washington, D.C., September 23, 2015.

Cathedral of St. Matthew

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Pope Francis arrives at a midday prayer with U.S. bishops at the Cathedral of St. Matthew the Apostle in Washington, D.C. on September 23, 2015, during the second day of his six-day visit to the U.S.

Pope Francis in Washington

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Pope Francis stands at the alter of the Blessed Sacrament Chapel for a private prayer before participating in the Midday Prayer Service at the Cathedral of St. Matthew in Washington, D.C., September 23, 2015.

Cathedral of St. Matthew

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Pope Francis holds a prayer meeting with the U.S. bishops at Saint Matthew's Cathedral in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Sister Marie of Washington passes through security before Pope Francis celebrates the Canonization Mass for Friar Junipero Serra at the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis reaches for a child, Sophie Cruz, during a papal parade in Washington, D.C., September 23, 2015.

Cruz, 5, squeezed through security barriers to deliver a letter asking Francis to help all immigrant children and a t-shirt to the pope.

Pope Francis in Washington

COURTESY CRUZ FAMILY

A picture Sophie Cruz, 5, drew of Pope Francis. The drawing reads, "My friends and I love each other without caring about the color of our skin."

Cruz, a child of undocumented immigrants, came to Washington, D.C. with her father to ask the pope to help immigrant children.

Pope Francis in Washington

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Protesters block a street outside Saint Matthew's Cathedral in Washington, D.C. during Pope Francis' prayer meeting with American bishops, September 23, 2015.

Pope Francis in Washington

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Pope Francis waves from the popemobile during a papal parade in Washington September 23, 2015. Pope Francis is making his first visit to the United States.

Pope Francis in Washington

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Pope Francis kisses a baby as he parades around the White House Ellipse in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Nancy Sheehy (L) and Mary Farrell (R) of Vienna, Virginia wait for Pope Francis in Washington, D.C., September 23, 2015.

Pope Francis in Washington

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Pope Francis gives a thumbs up to the crowd as he rides down Constitution Avenue in his popemobile in Washington, D.C. on day two of his first visit to the U.S., September 23, 2015. Pope Francis met with U.S. President Obama earlier in the morning.

Pope Francis in Washington

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Spectators take photos of Pope Francis during a parade on the streets around the Ellipse, south of the White House, September 23, 2015 in Washington, D.C.

Thousands of people gathered near the Ellipse to catch a glimpse of Pope Francis after he addressed an audience of 15,000 invited guests on the South Lawn of the White House during an official arrival ceremony with President Barack Obama.

Pope Francis & President Obama

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President Barack Obama talks with Pope Francis during a meeting in the Oval Office of the White House in Washington, D.C., September 23, 2015.