Former President Barack Obama formally opened his presidential center in Chicago on Thursday with a call to defend democracy as three former presidents joined him on stage in an extraordinary event featuring politicians,

The campus opens to the public this weekend with a museum, community amenities and more to honour the 44th US president.

Former President Barack Obama formally opened his presidential center in Chicago on Thursday with a call to defend democracy. He and Michelle Obama spoke as three other former presidents and their first ladies joined the Obama family

President Barack Obama was joined by three former presidents in an event that brought together world leaders, A-list celebrities, athletes and other internationally known figures.

By SCOTT BAUER Former President Barack Obama, joined by three former presidents, celebrated the opening of his presidential museum in Chicago in an extraordinary event Thursday that brought together world leaders,

All living US ex-presidents -- with the notable absence of current White House occupant Donald Trump -- joined a star-studded lineup Thursday for the opening of Barack Obama's presidential center in Chicago.

Former President Barack Obama, joined by three former presidents, celebrated the opening of his presidential center in Chicago in an event that brought together world leaders, A-list celebrities, athletes and other internationally known figures.

Former President Barack Obama, joined by three former presidents, is celebrating the opening of his presidential museum in Chicago in an extraordinary event that brought together former world leaders,