WASHINGTON—Republican members of Congress reacted to President Donald Trump’s meeting with North Korea’s leader Kim Jong Un with cautious optimism, saying they supported the goals outlined in the joint communiqué the two signed after the summit but warning it lacked detail and was only a starting point for negotiations.
“Only time will tell if North Korea is serious this time, and in the meantime we must continue to apply maximum economic pressure,” said House Speaker Paul Ryan (R., Wis.), referring to the sanctions framework...