Obama warns Trump “this is not a reality show”
President Barack Obama has warned republican candidate Donald Trump that the top spot in the White House "is not a reality show".
Asked about Trump at a media briefing, Obama urged the press and public to weigh past remarks by the outspoken candidate.
"This is not a reality show. This is a contest for the presidency of the United States," he said.
Trump became the Republican party's presumptive nominee this week, when two of his rivals dropped out of the race.
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Nevertheless, he's still is struggling to garner support from a number of leading members within the Republican party.
Former Florida governor, Jeb Bush, who ran unsuccessfully for the Republican nomination, posted on Facebook that he will not vote for Trump.
"Donald Trump has not demonstrated that temperament or strength of character. He has not displayed a respect for the Constitution. And, he is not a consistent conservative. These are all reasons why I cannot support his candidacy," he wrote.
US senator Lindsey Graham, who made an unsuccessful bid for president, and Mitt Romney, who won the Republican nomination in 2012, are also refusing to back Trump.
Read more: Fractures are creeping into the American political system
Earlier this week, Trump courted controversy again after saying that the migration crisis had been a "horrible thing for Europe" and that the EU was to blame.
He also told Fox News that he "felt" Britain should vote to leave the EU next month because it would be better off without it.
"I'm not making that as a recommendation, just my feeling. I know Great Britain very well, I know the country very well, I have a lot of investments there," Trump said.
"I want them to make their own decision," he added.