Taoiseach: Trump comments had the 'hallmarks of racism'

Taoiseach Leo Varadkar has said US president Donald Trump's decision to lash out at four US politicians of colour and to tell his critics to leave the country "certainly has the hallmarks of racism".

In a series of messages on social media website Twitter in recent days, Mr Trump said Democratic congress woman Ilhan Omar, who is a Somali-born US citizen can "leave" the US along with her three other congresswomen known as The Squad if "they don't love our country".