President Donald Trump’s new ban on travel to the United States by citizens from 12 mainly African and Middle Eastern countries is now in effect.

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.

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.

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,