Greens call for Bob Day's resignation

Greens leader Richard Di Natale says Family First senator Bob Day must resign and focus on those affected by the collapse of his housing group Home Australia, which owes almost $38 million to creditors.

He also called on the government to encourage Senator Day's resignation, instead of "relying on" the South Australian senator's vote to pass legislation.

"Think about those many families who are hurting right now, who invested their life savings because they wanted to follow the great Australia dream of buying a house, and who have had that ripped away from them," Senator Di Natale told reporters in Melbourne on Saturday.