Also while in Japan, Trump dismissed concerns over recent missile tests by North Korea, coming to leader Kim Jong-un’s defense and reiterating optimism over a future denuclearization deal. North Korea conducted two tests this month, firing off at least three ballistic missiles. Trump also welcomed comments recently aired on North Korean state media about Democratic presidential candidate and former Vice President Joe Biden.

President Donald Trump: “Well, Kim Jong-un made a statement that Joe Biden is a low-IQ individual. He probably is, based on his record. I think I agree with him on that. But at the same time, my people think it could have been a violation, as you know. I view it differently. I view it as a man—perhaps he wants to get attention, and perhaps not. Who knows? It doesn’t matter. All I know is that there have been no nuclear tests.”

Trump also suggested via Twitter the comments about Biden may be a direct signal sent from Kim. In February, much-anticipated denuclearization talks between Trump and Kim ended after Trump walked away during negotiations. North Korea has repeatedly said sanctions relief is a necessary condition in any future agreement.