Marco Rubio warns China is America's 'biggest threat'

WASHINGTON — Florida Sen. Marco Rubio on Wednesday painted a dark vision of the consequences of America's "unbalanced relationship" with China, echoing President-elect Donald Trump's anti-globalist rhetoric as he vies to be confirmed as his secretary of state. While touching on issues plaguing the Middle East, Latin America and eastern Europe, Rubio focused much of his five-hour Senate confirmation hearing warning that without swift and substantive policy shifts, China will remain the "biggest threat" to American prosperity in the 21st Century. "If we don't change course, we are going to live in the world where much of what matters to…