The federal government is making a fresh bid to reinstate the building industry watchdog by allowing crossbench senators to see a secret report on union corruption.

The opposition, the Greens and some crossbenchers have consistently blocked the coalition’s attempt to restore the Australian Building and Construction Commission after the previous Labor government abolished it. Employment Minister Michaelia Cash intends to reintroduce legislation when parliament returns for the year. In a bid to win over crossbench senators,…