With the fate of two crucial crossbench seats in doubt, the federal government has left its legislation to restore the building watchdog off next week's Senate agenda.

The draft program, released on Wednesday, includes bills for the same-sex marriage plebiscite, backpacker tax and changes to vocational loans. But there is no mention of the bills to re-establish the Australian Building and Construction Commission, the trigger for this year’s double dissolution election. The Turnbull government has relied on…