Pope Francis preaches compassion to divided Congress

Pope Francis addresses a joint meeting of the U.S. Congress in the House Chamber of the U.S. Capitol on September 24, 2015 in Washington, DC.

Pope to Congress: Cooperate for 'the common good'

02:48

Now playing

- Source: CNN

pope francis clergy sex abuse scandal us visit_00001202.jpg

Pope Francis: 'God weeps' for abuse victims

01:18

Now playing

- Source: CNN

pope francis festival of families universe remarks sot_00005813.jpg

Pope Francis: 'Before creating the world, God loved'

02:37

Now playing

- Source: CNN

pope francis globalization sot_00005224.jpg

Pope Francis shares his thoughts on globalization

01:36

Now playing

- Source: CNN

video from the popemobile philadelphia vo nr_00002718.jpg

See Philadelphia from inside the Popemobile

02:03

Now playing

- Source: CNN

pope francis speaks harlem school live lead_00003014.jpg

Pope Francis leaves students with homework

01:30

Now playing

- Source: CNN

Pope to U.N.: Climate change hurts the poor

02:03

Now playing

- Source: CNN

Pope Francis speaks on Iran nuclear deal at U.N.

01:05

Now playing

- Source: CNN

JOINT BASE ANDREWS, MD - SEPTEMBER 24: Pope Francis departs from Washington, DC en route to New York City on September 24, 2015 in Joint Base Andrews, Maryland.The Pope is on a six-day trip to the U.S., with stops in Washington, New York City and Philadelphia. (Photo by Patrick Smith/Getty Images)

Pope to leaders: 'Solemn commitments are not enough'

02:31

Now playing

- Source: CNN

Pope Francis New York City United Nations memorial madison square garden orig_00000000.jpg

Pope Francis's busy day in the Big Apple

01:16

Now playing

- Source: CNN

Pope Francis speaks during evening prayer service at St. Patrick's Cathedral in New York, Thursday, Sept. 24, 2015. (AP Photo/Mary Altaffer, Pool)

Pope Francis: Day one in NYC

02:51

Now playing

- Source: CNN

pope francis congress tears moos pkg erin _00005523.jpg

Congress gets emotional during Pope Francis' visit

02:08

Now playing

- Source: CNN

catholic charities pope francis dc costello dnt ac_00010308.jpg

Pope Francis spends lunch hour with homeless

02:03

Now playing

- Source: CNN

Where will Pope Francis stay in NYC?

02:25

Now playing

- Source: CNN

ADDS NAME OF GIRL - Pope Francis reaches to give a blessing to Sophie Cruz, 5, from suburban Los Angeles, during a parade in Washington, Wednesday, Sept. 23, 2015. She also delivered a bright yellow T-shirt and a letter expressing wishes that her mother and father and millions of others who are in the U.S. illegally are allowed to remain in the country. (AP Photo/Alex Brandon, Pool)

A 5-year-old's message to Pope Francis

01:51

Now playing

- Source: CNN

pope francis new york st patricks cathedral live erin_00015312.jpg

Pope Francis thanks religious women, gets standing ovation

01:55

Now playing

- Source: CNN

People watch Pope Francis address a Joint Session of Congress in front of the US Capitol in Washington, DC, on September 24, 2015 on the third day of his six-day visit to the US. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

Voices as the Pope visits Capitol Hill

01:04

Now playing

- Source: CNN

Feel-good moments from the Pope's visit to D.C.

01:12

Now playing

- Source: CNN

pope francis speech congress climate change distribution of wealth_00000000.jpg

Pope Francis talks climate change, income inequality

03:02

Now playing

- Source: CNN

pope francis speech congress global arms trade_00002219.jpg

Pope: Money from global arms trade 'drenched in blood'

01:31

Now playing

- Source: CNN

pope francis speech immigration refugee crisis _00010820.jpg

Pope Francis: 'Most of us were once foreigners'

05:50

Now playing

- Source: CNN

pope francis speech congress religious persecution_00025007.jpg

Pope Francis: 'We must move forward together as one'

05:46

Now playing

- Source: CNN

pope francis speech congress martin luther king jr._00002505.jpg

Pope Francis invokes MLK in speech to Congress

01:35

Now playing

- Source: CNN

pope francis obama visit wh tsr intv_00000415.jpg

Student who greeted Pope Francis: I joyfully cried

02:52

Now playing

- Source: CNN

Pope Francis greets well-wishers as he leaves the Apostolic Nunciature to the United States to go to the Basilica of the National Shrine of the Immaculate Conception on September 23, 2015 in Washington, DC. AFP PHOTO/MOLLY RILEY (Photo credit should read MOLLY RILEY/AFP/Getty Images)

Pope Francis' historic trip to the U.S.

02:21

Now playing

- Source: CNN

pope francis first mass live tsr_00000126.jpg

Pope Francis celebrates his first ever U.S. mass

02:25

Now playing

- Source: CNN

Pope Francis arrives at Catholic University

01:23

Now playing

- Source: CNN

Pope Francis kiss children parade_00000000.jpg

Pope Francis kisses children during parade

00:47

Now playing

- Source: CNN

Pope Francis waves towards US President Barack Obama and his family as he steps off his plane upon arrival at Andrews Air Force Base in Maryland.

Pope Francis embarks on historic trip to U.S.

02:10

Now playing

- Source: CNN

pope francis new york security dnt ac cooper_00004506.jpg

Is the NYPD ready for Pope Francis?

03:37

Now playing

- Source: CNN

Pope Francis waves alongside US President Barack Obama upon arrival at Andrews Air Force Base in Maryland, September 22, 2015, on the start of a 3-day trip to Washington. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

Pope Francis begins historic U.S. visit

02:06

Now playing

- Source: CNN

Pope Francis walks down the steps of his plane upon his arrival at Andrews Air Force Base, Md., Tuesday.

Understanding Pope Francis

10:47

Now playing

- Source: CNN

Pope Visit DC Security Live Lead _00005430.jpg

Pope's historic visit presents rare security challenges

03:42

Now playing

- Source: CNN

Pope arrives in U.S. for historic visit

03:28

Now playing

- Source: CNN

Panel: Pope to Deliver Message of Mercy

03:02

Now playing

- Source: CNN

JOINT BASE ANDREWS, MD - SEPTEMBER 22: Pope Francis shakes hands with Vice President Joe Biden along with U.S. President Barack Obama, first lady Michelle Obama, and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope. (Photo by Chip Somodevilla/Getty Images)

Father Edward Beck tears up during Pope's arrival

02:11

Now playing

- Source: CNN

What security is in place for Pope Francis?

03:04

Now playing

- Source: CNN

Pope Francis arrives in United States

01:07

Now playing

- Source: CNN

Will controversial guests stop Pope Francis' visit?

02:25

Now playing

- Source: CNN

A brief history of popes and presidents

01:49

Now playing

- Source: CNN

Pope Francis arrives to celebrate Mass in Revolution Square in Havana, Cuba, Sunday, Sept. 20, 2015. Pope Francis opens his first full day in Cuba on Sunday with what normally would be the culminating highlight of a papal visit: Mass before hundreds of thousands of people in Havana's Revolution Plaza. (Tony Gentile/POOL via AP)

Poll: Most Americans view Pope Francis favorably

02:41

Now playing

- Source: CNN

Speaker Boehner's army of volunteers

00:49

Now playing

- Source: CNN

Pope Francis (R) speaks with US President Barack Obama during a private audience on March 27, 2014 at the Vatican. The meeting at the Vatican comes as a welcome rest-stop for Obama during a six-day European tour dominated by the crisis over Crimea, and the US leader will doubtless be hoping some of the pope's overwhelming popularity will rub off on him. AFP PHOTO / SAUL LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images)

Some Republicans hesitant about Pope's Washington visit

02:20

Now playing

- Source: CNN

In this photo taken on Sunday, Sept. 20, 2015, Pope Francis is greeted by faithful as he enters the San Cristobal Cathedral, Havana, Cuba. Francis presided over the evening prayer service in Havana's 18th century cathedral, where he broke from prepared remarks and spoke off-the-cuff at length for the first time during his trip to Cuba. (L'Osservatore Romano/Pool Photo via AP)

With the Pope in town, how safe are you?

02:54

Now playing

- Source: CNN

Raul Castro and Cuba Move Forward Orig_00010625.jpg

From Fidel's confidante to 'Raul the Reformer'

01:58

Now playing

- Source: CNN

Junipero Serra Backlash America's first Hispanic saint orig_00023325.jpg

Backlash against America's first Hispanic saint

02:39

Now playing

- Source: CNN

pope francis life before papacy jorge mario bergoglio org_00000718.jpg

The man who became Pope Francis

02:39

Now playing

- Source: CNN

CNN Special Report: The People's Pope Trailer_00004601.jpg

Ambassador to Holy See: Pope "says what he feels"

02:46

Now playing

- Source: CNN

pope catholic families animation rachel crane ts orig_00000000.jpg

How Catholic families have changed since 1965

01:58

Now playing

- Source: CNN

pope francis nobel peace prize orig mg_00012920.jpg

Times Pope Francis has surprised us

02:28

Now playing

- Source: CNN

Pope Francis arrives for Mass at Revolution Plaza in Havana, Cuba, Sunday, Sept. 20, 2015. Pope Francis opens his first full day in Cuba on Sunday with what normally would be the culminating highlight of a papal visit: Mass before hundreds of thousands of people in Havana's Revolution Plaza. (AP Photo/Alessandra Tarantino)

Pope Francis receives rockstar treatment in Cuba

02:04

Now playing

- Source: CNN

CNN values your feedback

Pope delivers political message on immigration, tolerance to Congress