President Trump, I ask you to please reconsider family reunification for residents,’ said a 10-year-old from Havana in a video.

A new travel ban preventing people from a dozen countries from entering the United States went into effect Monday.

Truthout is 100 percent independent from government, Big Tech and advertisers. Please make a one-time or monthly donation to Truthout to support our movement journalism. Immigrant rights advocates who have been organizing as the ban takes effect discuss the latest developments.

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.

Donald Trump's travel ban forbids entry into the US to citizens from dozens of countries, mainly in Africa and the Middle East.

Mohammad Sharafoddin, his wife and young son managed to make it out of Afghanistan as refugees nine years ago, at one point walking 36 hours over mountain passes.

The Haitian government is expressing disappointment with the U.S. over Trump's recent decision to implement a travel ban, barring Haitians.