Joe Biden’s final address to the nation struck an ominous tone after warning of the growing power of America’s ultra-wealthy, and cautioning that an emerging oligarchy threatens the foundations of US democracy. The Wednesday prime-time Oval Office speech came as Biden prepares to hand the presidency back to Donald Trump, who he defeated in 2020 only to see return to power after Biden’s own dramatic exit from politics last summer. “Today, an oligarchy is taking shape in America of extreme wealth, power and influence that literally threatens our entire democracy, our basic rights and freedoms, and a fair shot for