Stand up to Trump, ex-Clinton adviser tells Varadkar

Jake Sullivan, who will meet Varadkar in Dublin this week, served as a senior national security adviser in Barack Obama’s administration

Hillary Clinton with Jake Sullivan in 2015 Picture: AP

Taoiseach Leo Varadkar should not be afraid to speak out forcefully against Donald Trump when he meets the US president next year, a former senior White House adviser has said.

Jake Sullivan, who will meet Varadkar in Dublin this week, served as a senior national security adviser in Barack Obama’s administration, and was set to be national security adviser to Hillary Clinton had she won the US election last year.

The current Yale ...