(FILES) In this file photo taken on March 22, 2018 United Nations Secretary-general envoy for climate action, Michael Bloomberg delivers a speech during the green finance conference at the European commission headquarters in Brussels. As US President Donald Trump faces intensifying scrutiny about possible connections to Russia, opposition Democrats are looking to 2020, and who might challenge the controversial leader for his job. / AFP / Ludovic MARIN
Former New York City mayor Michael Bloomberg held talks with US billionaire Bill Ackman about potentially taking his media company public. AFP

Michael Bloomberg held talks to take media company public