Prime Minister Anthony Albanese says the Liberals and Nationals made a "big mistake" in legitimising One Nation at the Farrer by-election.Earlier, One Nation MP Barnaby Joyce said the right-wing party would be shifting its attention to Western Sydney after its historic win at the Farrer by-election on Saturday.Follow all the updates in our live blog. Liberal senator Dave Sharma says he would not be in favour of One Nation joining the Liberal-National Coalition.Shadow Treasurer Tim Wilson wouldn't rule out an agreement with One Nation following the Farrer by-election result on Insiders yesterday.But Sharma has told Sky News he wouldn't support that and it's far too early to say whether the right-wing party will become a dominant force."I know they've had a few good results They've got two seats in the House of Representatives out of 151, one of them was because Barnaby Joyce was leaving the Nationals," Sharma says.Asked if Angus Taylor is the right person to lead the Liberals, Sharma says he fully supports the opposition leader.The prime minister has spoken to 4CA Cairns where he mostly discussed One Nation's victory in the Farrer by-election on Saturday but also weighed into tomorrow's budget.Anthony Albanese says the Liberals have left the door open for One Nation to join the Liberal-National Coalition."The Liberal Party and the National Party have blown up twice this year, since the election, and the idea you put a third party in there as well," Albanese says.Speaking on the budget, Mr Albanese says there will be measures outlined tomorrow that will address "intergenerational equity"."We see what happens when people don't think they have a shot at a fair go ..