Donald Trump and Barack Obama meet at White House

US President-elect Donald Trump has said it was a "great honour" to meet President Barack Obama for transition talks at the White House. Mr Obama said he was "encouraged" by their "excellent" and "wide-ranging" conversation, lasting over an hour. During the election campaign, Mr Trump vowed to dismantle Mr Obama's legacy and he has previously questioned his US citizenship. Mr Obama, meanwhile, had called Mr Trump "uniquely unqualified". Latest updates Five awkward photos of Trump meeting Obama President Trump's possible cabinet Trump presidency: Questions answered But following Mr Trump's shock defeat of Hillary Clinton in Tuesday's election, Mr Obama appealed for national unity and said he was "rooting" for him. After Thursday's behind-closed-doors meeting in the White House, Mr Obama said: "My number one priority in the coming two months is to try to facilitate a transition that ensures our president-elect is successful." Image copyrightAP Image caption President Barack Obama meets with President-elect Donald Trump in the Oval Office He said they had discussed domestic and foreign policy and he had been "very encouraged" by Mr Trump's interest in working with President Obama's team on issues facing the US. Mr Trump said he would "very much look forward" to dealing with President Obama in future. "I have great respect, the meeting lasted for almost an hour and a half, and it could've, as far as I'm concerned, it could've gone on for a lot longer," the president-elect said. "We discussed a lot of different situations - some wonderful and some difficulties." Image copyrightWHITE HOUSE Image caption Melania Trump and Michelle Obama in conversation White House spokesman Josh Earnest said the two men did not resolve their differences but "the meeting might have been at least a little less awkward than some might have expected". "President Obama came away from the meeting with renewed confidence in the commitment of the president-elect to engage in an effective, smooth transition," he said. Mr Trump flew from New York on his private jet and landed at Reagan National Airport, just outside the nation's capital. The president-elect was accompanied by his wife, Melania, who had a meeting with First Lady Michelle Obama.