Makes the ABCC an election issue when there isn't a single new major resource project under way under their tenure 

The Prime Minister has issued an ultimatum to the crossbench — vote for the Government's industrial relations bills or risk sending the nation to a double dissolution election.

Malcolm Turnbull has criticised those who see the decision to dissolve both houses as a "political tactic", arguing the decision would only be made to resolve an impasse between the Lower House and the Upper House.

"The only reason to go to a double dissolution is to resolve a deadlock," he said.

He said crossbenchers, Labor and the Greens had a clear choice.

"[If] they vote for those bills then there would be no question, we wouldn't even be talking about the possibility of a double dissolution," he said.

"But look, it is clearly an option, and it is something that the Government considers."

He said the industrial relations bills to reinstate the building and construction watchdog and to increase union transparency were both facing a second defeat in the Senate and were justifications to call a double dissolution poll.

"The only reason that I would consider advising the Governor-General to affect a double dissolution would be in order to deal with bills that had been rejected," Mr Turnbull said.

He said an election in July was within the normal parameters for this year's expected poll.

"An election after June 30 would not be regarded as early," he said.

A spineless threat from the jellyback that won't happen.