The son of a retired cop battling a life-threatening illness he caught at Ground Zero is going to Washington with Sen. Hillary Clinton for the State of the Union message, Clinton's office announced yesterday.

Clinton invited Ceasar Borja, 21, to be her guest at the Capitol Tuesday in a bid to raise awareness and funds for Ground Zero veterans stricken with illnesses.

Clinton spokesman Phillipe Reines said the senator got the idea after reading about 52-year-old Cesar Borja in the Daily News.

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