Unearthing the best of black music, Songlines goes clubbing with Aim for More. What better job can you have than in your living entertaining other people? With Letterstick Band and Nirkep. Then Backstage with Tidders and Teenage Band. Australia's Black Music Show, Songlines, 9.30 Wednesday. Tuesday, Budget 97. Switch on to ABC Television for a comprehensive coverage. Political correspondent Jim Middleton gives us the details. And after the Treasurer delivers his crucial Budget, Kerry O'Brien speaks with the players who will determine Australia's economic future and what it means for you. At 10.30 join Maxine McHugh and the Late Line team as they look at how John Howard will steer the Budget through a hostile Senate. Budget 97, ABC Television. Good evening in Dear and I Do with Late Edition News. National Party Leader Tim Fischer has tonight shrugged off rumblings of the leadership challenge. Mr Fischer defended his leadership following backbench concern over his handling of the native title issue. Today National Party backbencher Ian Causley warned Mr Fischer could be dumped as leader within a couple of months unless he takes more notice of the party's rank and file. This is the man who's broken ranks to condemn Tim Fischer's leadership. He's on a knife edge. The support is about 50-50. Ian Causley says Mr Fischer has been warned. Stand up for regional Australia and the National Party. The unrest in the ranks began after National Party losses in Cabinet, climaxing with Mr Fischer's apparent support of John Howard's WIC Plan, which doesn't wipe out native title on past releases. If the government's effort doesn't achieve that result, then he will be seen very much as having betrayed his supporters. I would have expected a far stronger stand, a far, far stronger stand. From Bob Catter's Kennedy electorate, the National Party heartland, a unanimous call yesterday for Tim Fischer to resign. He is not leading and doing for the best interest of our party. I'm not being complacent. I'm just getting on with the task and after 14 months in government, there are going to be many difficult issues which would cause some instability. But waiting in the wings are Cabinet Ministers John Anderson and John Sharp, although publicly they back Tim Fischer. The leadership challenge looms as the Nationals fear losing members to Pauline Hanson's One Nation Party. Where are we going? This part of the National Party? Tasmanian President Peter Murray upset Federal Nationals yesterday by giving the controversial Independent some policy advice. A massive manhunt continues in two states tonight for a gunman who shot dead three men on a property in northwest Victoria. 68-year-old orchard owner William Bale and a visitor from Queensland, Louis Evans, 75, were gunned down on a Beaverford property. The gunman then drove to a neighbouring property where he allegedly shot another local man, 49-year-old Timothy Hosick. A domestic dispute is believed to have sparked the murders. Police are hunting for a 46-year-old Beaverford man over the killings. Susie Moroney has made stunning progress in her bid to be the first person to swim between Cuba and the United States. At latest report, she was only about 11 nautical miles from US territorial waters off the Florida coast after spending 22 hours in the water. If the Australian Distance Specialist keeps up her current rate, she could reach Florida within a couple of hours. Earlier, there were fears deteriorating conditions would end the attempt to conquer the 145 kilometres across the notorious Florida Straits. Scientists believe they're close to a breakthrough which could ease the pain for migraine sufferers. Researchers hope they could soon identify the genes responsible. The discovery could lead to the development of new drugs and more effective treatment. One and a half million Australians suffer from migraine. Many describe the headaches as severe and excruciating. Most are left incapacitated for at least a day. Some even compare migraines to childbirth or broken bones. On the scale of 10, I think childbirth might come a little bit further up the ladder, but migraine's certainly very close to it. Migraine is a brain condition which is inherited but is triggered by stress, some foods, light and even strong perfume. Building on European research, genetic scientists in Queensland say they're only three to five years away from identifying the genes responsible. Rudolph was such an extraordinary person that just to be seen with him made you feel, made you feel as extraordinary as he was. Coming up next. Hello, Caroline Jones here for Australian Story. You know, on Saturday nights at 6.30 you can meet some really interesting people. A sad event makes you... ...was very aware. There is room for the play. In any sort of way, I don't want to get in the way. Canberra. Tonight's a night. The greatest show of... Christine Johnston and I'm a Singapore performer. So don't forget to join us for Australian Story, Saturday nights at 6.30. Tomorrow night at 7.30, the opposition leader, Kim Beasley, has his right of reply to the 1997 federal budget. What are his forecasts after Federal Treasurer Costello tabled his second budget? That's 7.30 tomorrow night, followed by the 7.30 report at 8. Good evening. India and I do, updating ABC News. BHP has denied claims by New South Wales Labour backbencher Tony Stewart that it's about to axe 300 jobs at its Port Kembler operation. Tonight a BHP official said while a merger with a foreign company was possible, there would be no job losses. Tomorrow all BHP steelworkers, apart from those in Waialla, will go on strike. The budget today received a less than enthusiastic reception from financial markets and business groups. They say the government needs to begin structural reform if it wants to make a serious dent in unemployment. And Police Royal Commission witness Colin Fisk was today denied bail on 54 sex charges involving minors. Fisk was remanded in custody after the prosecution claimed he had plans to leave the country. I'll be back with more news in an hour.