UPDATE 1-Bloomberg campaign spends over $220 million in January

U.S. Democratic presidential candidate Michael Bloomberg's campaign spent $220.6 million in January, with most of the money going to television advertising, his campaign said on Thursday. The spending, reported in a disclosure filed with the Federal Election Commission, brought total outlays by the campaign so far to $409 million, a historic sum for the early stages of the Democratic Party's nomination process.

Bloomberg, a billionaire former mayor of New York who is self-financing his campaign, received a withering assault from other Democratic candidates at a debate on Wednesday, including accusations he is trying to buy the election. He has been rising in public opinion polls despite not competing in early nomination contests and instead hoping to start winning delegates when 14 states hold contests on March 3.

Bloomberg's campaign spent $126.5 million on television advertising alone in January, and another $45.5 million on digital advertising.

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