Muir takes aim at Greens over early poll

Crossbench senator Ricky Muir says the Greens will be to blame if the government's building watchdog laws are passed.

Senator Muir said he had concerns about the Australian Building and Construction Commission's coercive powers and wanted the laws broadened to include employers and sham contractors.

But the Australian Motoring Enthusiast Party senator said he believed the laws would pass, either during the April sittings or after a double-dissolution election.

This was because the Greens had voted with the government last week to make changes to the way in which senators are elected, which experts say will lead to a wipeout of the crossbenchers.

"That's at the hands of the Greens," Senator Muir told reporters in Melbourne.

"They went for the power and they've already seen unintended consequences."

He said he was not surprised at Prime Minister Malcolm Turnbull's decision to recall parliament and bring on a July 2 election if the laws are not passed.

"I'm very disappointed," he said.

"Would this make me vote for the ABCC legislation? No."