George W. Bush's unlikely friendship with the Obamas once again on display on Jan. 9, when the Republican gave Barack Obama a friendly greeting at the state funeral for Jimmy Carter

On Thursday (Jan. 9), leaders and supporters poured into Washington, D.C.’s National Cathedral to pay their respects to former President Jimmy Carter, who died just before the new year at the age of 100.

US President-elect Donald Trump did not disclose what he discussed with former President Barack Obama, but admitted their rapport was unexpected, given their differing political ideologies.