President Obama slams Republican nominee for president Donald Trump at a joint press conference with the prime minister of Singapore at the White House Tuesday morning. Obama said Trump does not have the judgment, temperament or understanding to occupy the Oval Office. Obama scolded Trump for his "attack on a Gold Star family." "He is woefully unprepared," Obama stated. <b><a href="http://www.realclearpolitics.com/video/2016/08/02/trump_theres_something_phony_about_this_weeks_cnn_poll.html">Trump: "There's Something Phony" About This Week's CNN Poll</a></b> The president implored Republicans to un-endorse him and asked what does it say about the Republican party that Trump is their standard bearer. This isn't an "episodic gaffe," this is daily and weekly, Obama said. Obama called on Republicans to repudiate and condemn the party's nominee. <b><a href="http://www.realclearpolitics.com/video/2016/08/02/trump_were_running_against_a_rigged_press.html">Trump: "We're Running Against a Rigged Press"</a></b> "There has to come a point at which you say somebody who makes those kinds of statements doesn't have the judgment, the temperament, the understanding to occupy the most powerful position in the world," Obama said at the event with PM Lee Hsien Loong. "There has to be a point in which you say this is somebody I can't support for president of United States," the president said. "There has to be a point in which you say 'enough.'" "I recognize that they all profoundly disagree with myself or Hillary Clinton on tax policy or on certain elements of foreign policy," Obama said of Republicans. "But you know, there have been Republican presidents with whom I disagreed with but I didn't have a doubt that they could function as president." From President Obama's press conference: <blockquote>OBAMA: I think the Republican nominee is unfit to serve as president. I said so last week. He keeps on proving it. The notion that he would attack a Gold Star family, that [General] Hayden -- had made such extraordinary sacrifices on behalf of our country, the fact that he does not appear to have basic knowledge around critical issues in Europe, the Middle East, in Asia. It means that he is woefully unprepared. This is not just my opinion. What's been interesting has been the repeated denunciations of his statements by leading Republicans. Including the Speaker of the House, the Senate Majority Leader, prominent Republicans like John McCain. The question they have to ask themselves is if you are repeatedly having to say in very strong terms that what he has said is unacceptable, why are you still endorsing him? What does this say about your party, that this is your standard bearer? This isn't a situation where you have an episodic gaffe. This is daily, and weekly, where they are distancing themselves from statements he's making. There has to be a point in which you say, this is not somebody I can support for president of the United States. Even if he purports to be a member of my party. And, you know, the fact that that has not yet happened makes some of these denunciations ring hollow. I don't doubt their sincerity. I don't doubt that they were outraged about some of the statements that Mr. Trump and his supporters made about the Khan family. But there has to come a point at which you say somebody who makes those kinds of statements doesn't have the judgment, the temperament, the understanding to occupy the most powerful position in the world. Because a lot of people depend on the White House getting stuff right. And this is different than just having policy disagreements. I recognize that they all profoundly disagree with myself or Hillary Clinton on tax policy or on certain elements of foreign policy. But you know, there have been Republican presidents with whom I disagreed with but I didn't have a doubt that they could function as president... There has to come a point in which you say, enough. And the alternative is that the entire party, the Republican party, effectively endorses and validates the positions that are being articulated by Mr. Trump. And as I said in my speech last week, I don't think that actually represents the views of a whole lot of Republicans out there. </blockquote> <a href="https://www.donaldjtrump.com/press-releases/trump-statement-in-response-to-president-obamas-failed-leadership">Trump responded to Obama in a statement Tuesday afternoon</a>: <blockquote>President Obama has been a failed leader who along with Secretary of State Clinton created a foreign policy that has destabilized the world and made it an unsafe place. He is the one who is unfit to be President and Hillary Clinton is equally unfit. Obama-Clinton have single-handedly destabilized the Middle East, handed Iraq, Libya and Syria to ISIS, and allowed our personnel to be slaughtered at Benghazi. Then they put Iran on the path to nuclear weapons. Then they allowed dozens of veterans to die waiting for medical care that never came. Hillary Clinton put the whole country at risk with her illegal email server, deleted evidence of her crime, and lied repeatedly about her conduct which endangered us all. They released criminal aliens into our country who killed one innocent American after another -- like Sarah Root and Kate Steinle -- and have repeatedly admitted migrants later implicated in terrorism. They have produced the worst recovery since the Great Depression. They have shipped millions of our best jobs overseas to appease their global special interests. They have betrayed our security and our workers, and Hillary Clinton has proven herself unfit to serve in any government office. She is reckless with her emails, reckless with regime change, and reckless with American lives. Our nation has been humiliated abroad and compromised by radical Islam brought onto our shores. We need change now.</blockquote>