Trump wants merit-based immigration to US: Whom will it impact and how?

In August, Trump had announced his support for a legislation that would cut in half the number of legal immigrants allowed into the US while moving to a 'merit-based' system

In the wake of the New York truck attack that left eight people dead, US President Donald Trump has called for tougher "merit-based" immigration measures and for doing away with the diversity visa programme. (Read more here) 

Trump said the attacker Sayfullo Habibullaevic Saipov, who ploughed a pickup truck down a crowded bike path near the World Trade Centre killing eight people and injuring 11 others in an ISIS-inspired plot, was allowed to enter the US on a State Department programme known as the "Diversity Lottery Programme". 

"We are fighting hard for Merit Based immigration, no more Democrat