Bloomberg's personal appearance to sign his ballot papers in Little Rock is a strong public signal that the centrist tycoon will officially leap into the already-crowded Democratic primary field
Bloomberg is the founder and majority owner of Bloomberg LP, the parent company of Bloomberg News
Bloomberg, 77, had considered a run earlier this year but decided not to run and instead support Democratic efforts to regain control in Washington
Bloomberg will continue to provide money for the pact if the United States does not rejoin the agreement
Bloomberg said on Monday he would not mount an independent bid for the US presidency because he feared it would increase the chances that Donald Trump or Ted Cruz could end up in the White House