In July 2016 , Bloomberg delivered a speech at the 2016 Democratic National Convention in which he called Hillary Clinton " the right choice . " In the speech , Bloomberg warned of the dangers a Trump presidency would pose . He said Trump " wants you to believe that we can solve our biggest problems by deporting Mexicans and shutting out Muslims . He wants you to believe that erecting trade barriers will bring back good jobs . He 's wrong on both counts . " Bloomberg also said Trump 's economic plans " would make it harder for small businesses to compete " and would " erode our influence in the world . " Trump responded to the speech with a series of angry tweets In June 2018 , Bloomberg made plans to give $ 80 million to support Democratic congressional candidates in the 2018 election , with the goal of flipping control of the Republican-controlled House to Democrats . In a statement , Bloomberg said that Republican House leadership were " absolutely feckless " and had failed to govern responsibly . Bloomberg advisor Howard Wolfson was chosen to lead the effort , which is to target mainly suburban districts . In October 2018 , Bloomberg announced that he had changed his political party affiliation to Democrat , which he had previously been registered as prior to 2001 . By early October , Bloomberg had committed more than $ 100 million to returning the House and Senate to Democratic power , fueling speculation about a presidential run in 2020 . On March 5 , 2019 , Bloomberg announced that he will not run for president in 2020 , instead encouraging the Democratic Party to " nominate a Democrat who will be in the strongest position to defeat Donald Trump "
2016 Democratic National Convention
2016 Democratic National Convention
Michael Bloomberg