Outspoken MP and Liberal leadership aspirant Andrew Hastie has quit the opposition front bench in a move that will likely further destabilise Sussan Ley's control over the beleaguered party. "On this basis, I made the decision that I was not able to continue in this role and remain silent on immigration," Mr Hastie said in a statement on Friday evening. "Mr Hastie did not raise any matters relating to policy on this call," she said. Victorian senator James Paterson will serve as acting opposition spokesman for home affairs ahead of formal changes to shadow cabinet. Among a series of social media posts linking immigration to housing shortages, Mr Hastie said: "We're starting to feel like strangers in our own home."