Trump says N. Korea has made nuclear concessions before talks

President Donald Trump said Thursday that North Korea's Kim Jong Un has made nuclear weapons concessions before even sitting down for talks, while the US hasn't given up anything.

Trump's assertions came before Friday's summit between North Korea and South Korea that's expected to pave the way for a historic meeting between Trump and Kim in May or June.

Trump told "Fox & Friends" that his tough approach toward the North, and now his willingness to engage with Kim, had reduced the risk of nuclear war. He contended that North Korea has "given up denuclearization, testing, research" and that "we're going to close different sites."