Mrs Clinton spoke at a women in leadership event at Queen’s University Belfast.

But the former US president said excuses can always be found to say no.

Former US president Bill Clinton said he granted the visa to Gerry Adams but said there must be no fundraising on his trip.

Former UK prime minister Sir Tony Blair remembers receiving a call from the late Queen after the peace agreement was reached in 1998.

The former US president is to visit the city to attend a conference to mark the 25th Anniversary of the historic agreement