Australia's One Nation warns it is coming for more seats as the coalition picks through the rubble of a historic by-election result. David Farley swept to victory in the sprawling southern New South Wales electorate of Farrer on Saturday night, ending the coalition's 77-year reign in the federal seat. With more than 80% of ballots counted, Mr Farley had claimed more than 57% of the two-candidate-preferred vote to comfortably beat independent Michelle Milthorpe. "One Nation has reached the end of its beginning. We're going through the ceiling from here," he declared on Saturday night to a room that erupted in cheers and applause. It is One Nation's first federal lower-house election victory since the party was founded by Pauline Hanson in 1997 and she had a message for the major parties. "We're coming after those other seats," Ms Hanson said. Former Nationals leader turned One Nation MP Barnaby Joyce also suggested the political earthquake would spread. "Western Sydney here we come," he said.…