A presidential election is "not reality TV", US President Barack Obama has said in an interview with late night talk show host Jimmy Fallon.
Obama praised Hillary Clinton, who had secured his Democratic Party's nomination, but did not endorse her outright ahead of a meeting on Thursday with rival candidate Bernie Sanders.
"The main role I'm gonna be playing in this process is to remind the American people that this is a serious job," Obama said, according to a transcript of the interview that is to air on Thursday.
"You know, this is not reality TV."
Obama said he had not spoken with presumptive Republican nominee Donald Trump.
Asked whether Republicans were happy with their divisive choice, Obama joked, "We are. But I don't know how they're feeling."
However, he said on a serious note that the situation among opposition Republicans "is not actually good for the country as a whole. It's not something Democrats should wish for."
He said he hoped the party could correct itself in future elections and return to its role as a centre-right party.
He also hoped divisions between Democrats start to heal during the next couple of weeks after a hard-fought campaign.
"My hope is that over the next couple of weeks we're able to pull things together," Obama said.
"What happens during primaries is you get a little ouchy," Obama told NBC late night host Jimmy Fallon during a taping of The Tonight Show set to air on Thursday.