Sussan Ley insists the Liberal Party is speaking as one on common values despite tensions on energy policy leading to speculation over her leadership.

An internal rift over emissions targets and a series of dire polls have supercharged suggestions Ms Ley's days as opposition leader are numbered, with Liberal senator Sarah Henderson on Friday stopping well short of endorsing her.

"I do have to say really honestly, I do think Sussan is losing support, but I do believe in miracles," Senator Henderson said.

"We can turn things around, but things are not good."

Ms Ley brushed aside the comments from her colleague.

"I'm not commenting on commentary. What I am saying is that every one of my team is absolutely united behind the focus that we have right now, which is to hold this Labor governm

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