U.S. President Donald Trump has responded to North Korean leader Kim Jong-un's recent trip to Beijing by tweeting that he and Kim "look forward" to meeting each other.<br /> Trump appeared optimistic about the upcoming U.S.-North Korea summit set for May.<br />He said he believed there was a "good chance" the North Korean leader "will do what is right for his people and for humanity",... and move towards denuclearization. <br />President Trump added that "in the meantime",... maximum sanctions and pressure will be maintained on Pyongyang. <br />