The government wanted its $20 billion Housing Australia Future Fund legislated this week, but the Greens had other plans - they joined forces with the Coalition to defer the vote on the bill until October.  The Greens say they won’t support the bill until the government makes concessions - they want a national rental freeze and more taxpayer money directed straight into housing, as opposed to putting it into an investment fund.  The government has intimated that the blocking of the bill is the first step in setting up a double dissolution election trigger.  So, how will the government handle the first major roadblock to its agenda? What exactly are the Greens fighting for, and *who* are they fighting for? And are we really headed for a double dissolution election?  Today, economics correspondent Rachel Clun and chief political correspondent David Crowe join Jacqueline Maley to discuss the week in politics.  Cut through the noise of federal politics with news, views and expert analysis from Jacqueline Maley. Subscribers can sign up to our weekly Inside Politics newsletter here.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.