TOPSHOT - Demonstrators participate in a President's Day protest against US President Donald Trump immigration policy at the Union Square on February 18, 2019 in New York City. - The event is part of a national mobilization effort with protests to be held throughout the country. US President Trump on February 15, 2019 invoked a "national emergency" to justify tapping military and other funds for barrier construction, after Congress approved less than a fourth the $5.7 billion he had sought for border security. (Photo by Johannes EISELE / AFP)