Billionaire Michael Bloomberg files paperwork to run for U.S. president

Billionaire Michael Bloomberg filed paperwork on Thursday with the Federal Election Commission to run for U.S.

president as a Democrat, the latest sign that the former New York City Mayor is joining the crowded nominating contest.  

The filing allows Bloomberg to raise money in a bid for the White House, but an aide said on Thursday that no final decision on whether he will run has been made.