President Donald Trump concluded his high-stakes visit to Beijing after reaching extensive trade and geopolitical agreements with Xi Jinping.The leaders committed to increasing Chinese purchases of US agricultural products and Boeing aircraft while discussing stability in the Iran war.Secretary of State Marco Rubio reaffirmed that US policy on Taiwan remains unchanged despite the introduction of tech CEOs to Chinese officials.Both sides announced plans to establish a Board of Trade to mitigate future economic disputes while addressing the status of imprisoned activists.