Liberal member for Wentworth Dave Sharma again under threat from an independent

Wentworth MP Dave Sharma faces a tough challenge from independent Allegra Spender. (AAP: Steven Saphore, Bianca De Marchi)

At a pre-polling centre at Bondi Junction, Dave Sharma laughed when talking about how being preselected for the seemingly plum Liberal seat of Wentworth hadn't turned out exactly as expected.

"It would be wrong to describe it as a blue-ribbon Liberal seat," he said.