The White House says North Korea has confirmed directly to the Trump administration that it's willing to negotiate its potential denuclearization with the United States.<br /> Watchers say the confirmation offers Washington greater assurances that North Korean leader Kim Jong-un is committed to holding a summit with President Trump by the end of May.<br />While a summit had been agreed upon during a trip to Washington last month by South Korean envoys,... skepticism has persisted as Pyongyang has been silent about the proposed summit ever since.<br />Still, not much is known about the bilateral summit,... with White House officials not confirming the location or the agenda for the talks. <br />