With Democratic losses looming, the blame game has already begun. Former House whip Tony Coelho, an unpaid adviser to the Democratic National Committee, is drawing fire for promising more money to California gubernatorial candidate Kathleen Brown’s flagging campaign without first checking with the White House. The DNC has so far refused to cough up. Democratic sources say Coelho’s freewheeling ways could cost him a shot at running Clinton’s ‘96 campaign: ““He’s a total lone ranger,’’ says a DNC official.