Watch: Donald Trump's border action sparks gathering of 1,500 migrants in Mexico

Donald Trump is back in the White House, and his second term is focused on immigration control. On his first day in office, he declared illegal immigration a national emergency and launched a crackdown. He ordered the US military to help secure the border and banned asylum. His January 20 executive order sent troops to take full control of the US-Mexico border. The military released footage showing Marines strengthening the border fence with metal beams and barbed wire to stop illegal immigration. As a result, around 1,500 migrants gathered outside the Mexican refugee office (COMAR) in Mexico City on January 27, demonstrating the impact of the new border security measures.