 On October 14, 2019, a day before the Democratic Party's fourth presidential debate, it was reported that Bloomberg was "still looking at" entering the race if Joe Biden were to drop out, but that "nothing can happen unless Biden drops out", according to an unnamed source reported to be close to the situation.Fellow billionaire Warren Buffett had expressed his approval of a potential Bloomberg presidential campaign as early as February 2019.In March 2019, Bloomberg originally announced that he would not run for president.