The billionaire's campaign spent $18.5 million on TV ads in the past 30 days.
Bloomberg News reporting policy is "troubling and wrong," campaign says.
Numerous lawsuits describe a culture of misogyny at Bloomberg's namesake firm, some of which was under his leadership.
Bloomberg vowed to support “taxing wealthy people like me,” but insisted that a tax on wealth “Just doesn’t work.”
The billionaire businessman has been a Democrat, a Republican and an independent over the course of his political career.
In total, the 20 richest Americans donated roughly $8.7 billion to charity in 2018, just 0.8 percent of their collective net worth.
"We are extremely alarmed by management's decision," the union wrote.
Bloomberg spent at least $37 million for two weeks of television ads.
"He can clearly outspend Trump," former House speaker says.
No matter who leads, the Democratic Party will remain at war with itself, Stuart Varney said.
"There is no point in trying to claim that covering this presidential campaign will be easy for a newsroom that has built up its reputation for independence in part by not writing about ourselves."
He has been preparing a run for weeks.
Bloomberg’s team insists that his wealth allows him to be more responsive to the concerns of everyday people because he isn’t beholden to special interests.
Michael Bloomberg has the White House in his sight.
"It's up to New Yorkers whether they accept it or not," he told FOX Business.
The former New York City mayor has already filed paperwork in at least two states to appear on presidential primary ballots.
In a statement, Bloomberg's campaign said the former New York mayor believes his past comments are "disrespectful and wrong."
The billionaire is taking another step which signals a possible 2020 run.
Billionaire takes a big step toward 2020 run.
Markets may breathe a 'sigh of relief' if he secures the nomination, expert says.