It's back on. U.S. President Donald Trump reversed course Friday, announcing that his historic summit with North Korean leader Kim Jong Un will, indeed, be held on June 12 in Singapore, but noted pointedly that Japan, South Korea and China — not the United States — would cover the cost of economic aid, saying "that's their neighborhood; it's not our neighborhood."

In confirming the summit, Trump said he believed it would be a "very successful" meeting and "ultimately, a successful process."

The announcement came as Trump met at the White House with North Korea's Kim Yong Chol, a former spy chief and the country's de facto No. 2 official, who had to receive a special waiver to enter the U.S. due to sanctions stemming from his alleged role in the North's nuclear program and other illicit activities.