 Independent MP Andrew Wilkie implored the opposition and crossbench MPs to go so far as to block supply in his opposition to the budget.Following the second rejection of the budget measures by the Senate, Abbott has been challenged by Opposition Leader Bill Shorten and Clive Palmer to act upon a double dissolution trigger and request Governor-General Peter Cosgrove to dissolve both houses of Parliament or bring in a mini-budget.Even before the budget was delivered the Reserve Bank of Australia warned that a tightening of fiscal policy combined with a decline in resources construction projects would lead to an increase in the unemployment rate.