US President speaks on brighter China ties ahead of talks.
Increased measures reflect concerns over trade and Iran conflict.
Trump's visit marks a shift toward combative engagements with China.
Trump insists preventing Iran’s nuclear weapon is crucial for US.
Senate confirmed Warsh, termed a ‘sock puppet’ by Democrats.
States facing penalties for not complying with fraud crackdown.
Discover deeper insights on the Trump-Xi summit and implications.