The easiest way to have it occur is to swing the most marginal seat from that election, Corangamite, from Labor to Liberal. This gives the Coalition 73 seats. Tony Crook (the WA National) will fall in line behind them; Bob Katter decided to support them in OTL, and he'll probably do so here too; I reckon Rob Oakeshott could be persuaded to be the 76th MP to grant them confidence and supply.What if Abbott had become Prime Minister of Australia in 2010? how could this have occurred? What would have happened if it did? How would this TL be different from OTL?
The easiest way to have it occur is to swing the most marginal seat from that election, Corangamite, from Labor to Liberal. This gives the Coalition 73 seats. Tony Crook (the WA National) will fall in line behind them; Bob Katter decided to support them in OTL, and he'll probably do so here too; I reckon Rob Oakeshott could be persuaded to be the 76th MP to grant them confidence and supply.
Of course, they'd still have to deal with a hostile Senate after July 2011.