Thanks for your reply. Here are some of the text of the article:
"Tony Abott's last party room meeting before his MPs and senators headed home for Chirstmas should have been a happy event, with the polls showing the Coalition would win an election in a landslide. Instead it was tense and tetchy.
Abbott slapped down backbencher and former Howard goverment advis
Then I guess crash = fail (the party crashed) and crash through = succeed, make a major breakthrough (the party crashed through). But it may be an Aussie idiom instead.