KEY POINTS
  • Billionaire and former New York Mayor Mike Bloomberg announces on social media that he has re-registered as a Democrat.
  • Bloomberg is considering a run for the White House in 2020.
  • "We need Democrats to provide the checks and balance our nation so badly needs," he writes.

Mike Bloomberg is a Democrat. Again.

The billionaire former New York mayor, who is considering a run for the White House in 2020, announced on social media early Wednesday that he re-registered as a member of the Democratic Party. He had previously run for office as a Republican and an independent.