Before discussing the results, it's important to note that Australia's "Liberal" party would be deemed as conservative in the US.
With that fact out of the way, Liberal Scott Morrison was reelected despite all polls suggesting otherwise, for two straight years.
Nearly all polls predicted Bill Shorten would have an easy win with a 51:49 lead over Prime Minister Scott Morrison on a two-party preferred basis. In fact, for two years the polls had picked the Opposition to take government.
Instead it was a shock loss for Labor which was hit by a blue sweep through Queensland, less than desirable results in Victoria and a return to the status quo in Western Australia.