Trump says he will leave meeting with North Korea if not productive

More from the press conference:

• On the issue of Japanese citizens abducted in North Korea, President Trump said he told Abe on Tuesday night: "We will work very hard on that issue and we will try to bring those folks back home.”
• On North Korea, Abe said: “Just because North Korea is responding to dialogue" doesn't mean they should be rewarded, and that "maximum pressure should be maintained."
• On the Trans-Pacific Partnership, Trump said: “I don’t want to go back in the TPP, but if they offer us a deal we can’t refuse, on behalf of the United States I would do it.”
• Abe, however, said the TPP is "best for both countries."
• When asked if he would be firing special counsel Robert Mueller and deputy attorney general Rod Rosenstein, Trump said: "They're still here."
• On the Mueller probe, Trump stood by his previous claims that there was no collusion, and that it's "a hoax created largely by the democrats."