Pope Francis suggested President Donald Trump may not be pro-life if he ends the Obama-era Deferred Action for Child Arrivals program.
"The President of the United States presents himself as pro-life and if he is a good pro-lifer, he understands that family is the cradle of life and its unity must be protected," Pope Francis said on a flight back from Colombia to Rome, CNN reports.
Trump shocked many after announcing he was rescinding the Obama-era policy, leaving tens of thousands of young people who arrived in the U.S. illegally as children at risk of deportation.
"Congress now has 6 months to legalize DACA (something the Obama Administration was unable to do)," he tweeted on Sept. 5. "If they can't, I will revisit this issue!"
He has since tried to reassure those enrolled in the program they will be fine for at least the next six months.
"For all of those [DACA] that are concerned about your status during the 6 month period, you have nothing to worry about - No action!' Trump tweeted two days later.
The pope urged the U.S. president to rethink his position.
"I think this law comes not from parliament but from the executive," Pope Francis said. "If that is so, I am hopeful that it will be re-thought."
The pope's remarks come shortly after former White House chief strategist Steve Bannon lashed out against Catholic bishops for criticizing Trump's decision.
"The bishops have been terrible on this," Bannon said in an interview, reports CNN. "You know why? Because, unable to come to grips with the problems in the church, they need illegal aliens. They need illegal aliens to fill the churches ...They have an economic interest."
It is just one of the many times the pope has condemned Trump over immigration-related issues, the Daily Mail reports.
"A person who thinks only about building walls, wherever they may be, and not building bridges, is not Christian," said Pope Francis in February about Trump's plans to build a wall on the border with Mexico. "This is not the gospel."
Trump was quick to lash out against the pope.
"No leader, especially a religious leader, should have the right to question another man's religion or faith," he said in response. "If and when the Vatican is attacked by ISIS, which as everyone knows is ISIS's ultimate trophy, I can promise you that the Pope would have only wished and prayed that Donald Trump would have been president."
Relations between the two improved after Trump visited the pope at the Vatican in May, according to The Atlantic.