President Biden welcomed South Korea's president to the White House Wednesday. The two leaders announced an agreement to counter North Korea's ongoing nuclear threats. The so-called Washington declaration includes plans to have American nuclear submarines docked in South Korea -- for the first time in more than 40 years. Biden and the first lady later honored Yoon Suk Yeol and his wife at a state dinner in the White House. Ed O'Keefe is there with the latest.
