Immigrants wait in line for food at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas.

Immigrants wait in line for food at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas. 

A Border Patrol agent guards a gap in the fence on the border with Mexico Monday, Nov. 14, 2016 in Penitas, Texas.

A Border Patrol agent guards a gap in the fence on the border with Mexico Monday, Nov. 14, 2016 in Penitas, Texas.

Kids run out of a temporary shelter as other immigrants, most of whom are escaping violence and poverty in El Salvador, Honduras and Guatemala, claim cots to spend the night at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas.

Kids run out of a temporary shelter as other immigrants, most of whom are escaping violence and poverty in El Salvador, Honduras and Guatemala, claim cots to spend the night at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas.

Border Patrol agent Isaac Villegas walks down a trail on the bank of the Rio Grande River to a landing site frequently used by immigrants crossing into the United States Wednesday, Nov. 16, 2016 near Roma, Texas.

Border Patrol agent Isaac Villegas walks down a trail on the bank of the Rio Grande River to a landing site frequently used by immigrants crossing into the United States Wednesday, Nov. 16, 2016 near Roma, Texas.

A boy who just crossed the Mexican border into the United States with his family cries while waiting in line for food at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas.

A boy who just crossed the Mexican border into the United States with his family cries while waiting in line for food at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas.

Hidalgo County Sheriff J.E. "Eddie" Guerra, whose area of responsibility includes the border with Mexico, sits in his office Tuesday, Nov. 15, 2016 in Edinburg, Texas .

Hidalgo County Sheriff J.E. "Eddie" Guerra, whose area of responsibility includes the border with Mexico, sits in his office Tuesday, Nov. 15, 2016 in Edinburg, Texas . 

A group of immigrants stand next to a road after they crossed into the United States and were detained by Border Patrol Wednesday, Nov. 16, 2016 in McAllen, Texas.

A group of immigrants stand next to a road after they crossed into the United States and were detained by Border Patrol Wednesday, Nov. 16, 2016 in McAllen, Texas.

Nina Newell, left, a home health worker, looks through medication for her mother, Maria Mata, right, at her mother's home Friday, Dec. 16, 2016 in Brownsville, Texas.

Nina Newell, left, a home health worker, looks through medication for her mother, Maria Mata, right, at her mother's home Friday, Dec. 16, 2016 in Brownsville, Texas.

Gabriella Medina holds her four-month-old son, Selvin Eduardo Albarado, on a cot in a temporary shelter at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen. The church assists hundreds of immigrants everyday who arrive in McAllen after being

Gabriella Medina holds her four-month-old son, Selvin Eduardo Albarado, on a cot in a temporary shelter at Sacred Heart Catholic Church Tuesday, Nov. 15, 2016 in McAllen, Texas. The church assists hundreds of immigrants everyday who arrive in McAllen after being processed by U.S. Border Patrol.

Luis Jafeth Duran, 3, stands under a full moon minutes after he and his mother, Jenny Marisa Rodriguez, surrendered themselves to Hidalgo County constables after crossing the border into the United States Tuesday, Nov. 15, 2016 in Mission, Texas.

Luis Jafeth Duran, 3, stands under a full moon minutes after he and his mother, Jenny Marisa Rodriguez, surrendered themselves to Hidalgo County constables after crossing the border into the United States Tuesday, Nov. 15, 2016 in Mission, Texas. Rodriguez fled with Luis from Honduras after local gangs threatened to harm him if she didn't give them information about her husband, who ran away when the gangs were pressuring him to join them. She hasn't heard from her husband in a year.

Kevin Garza Garibaldi, 2, hangs onto his mother, Yesenia Garibaldi, in his grandmothers trailer in the Pueblo de Palmas colonia Tuesday, Nov. 15, 2016 in Penitas, Texas.

Kevin Garza Garibaldi, 2, hangs onto his mother, Yesenia Garibaldi, in his grandmothers trailer in the Pueblo de Palmas colonia Tuesday, Nov. 15, 2016 in Penitas, Texas.

People walk back toward the border after shopping in Brownsville, Texas.

People walk back toward the border after shopping in Brownsville, Texas.

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