Fighting with Obama is a battle Trump would likely relish as he tries to rally support within his own party. During hard-fought Republican primary campaigns, the billionaire delighted in responding to attacks from rivals and found that his support grew when he lashed out at his opponents.
Asked about Trump at a media briefing in the White House, Obama called on the press and public to weigh past statements bythe Republican but did not point to any specific issues or remarks.
"This is not entertainment," Obama said, a reference toTrump's television background. "This is not a reality show. This is a contest for the presidency of the United States," he said.
Some top Republican leaders - US House Speaker Paul Ryan among them - are still expressing wariness about Trump, who became the party's presumptive nominee this week when two Republican rivals dropped out of the White House race.
- Reuters