The Trump administration has imposed a travel ban on 12 countries, which took effect Monday. The ban is prohibiting those primarily in Africa and the Middle East from entering the U.S. out of concerns of national security and terrorism.

U.S. Rep. Mike Lawler, a fellow Republican, urged the Trump administration to reverse its decision. Lawler's 17th District includes Spring Valley, home to the second-largest Haitian diaspora, per capita, in the U.S.

Trump also tied the new ban to a terrorist attack in Boulder, Colorado, saying it underscored the dangers posed by some visitors who overstay visas. U.S. officials say the man charged in the attack overstayed a tourist visa. He is from Egypt, a country that is not on Trump’s restricted list.

The White House says the 12 countries on the list are "deficient with regards to screening and vetting" and are being targeted to protect U.S. national security.

Sick children, families and businesses are among the many people in Haiti, a country plagued by gang violence, likely to be hit hard by a U.S. travel ban.

Border czar Tom Homan voiced his support for President Donald Trump’s travel ban on 12 countries, which went into effect Monday. The United States has excluded travelers from Afghanistan, Myanmar, Chad,

"Donald Trump just ripped a life preserver from their desperate arms and tied weights around their ankles," said Reps. Pressley and Clarke.