Wentworth remains one of the most interesting individual contests in this campaign.
These efforts should include trying to turn around the United States' decision to leave the Paris agreement, Sharma told the Coalition for Conservation on Tuesday night.
After election night reports of a thumping win in by independent Kerryn Phelps, the Liberals have recovered significantly in postal votes - so much so, the result is now uncertain.A
For Phelps the byelection is important but for Morrison, it is critical. If Wentworth is lost, the Coalition loses majority. There could be some paralysis and the fear in the ranks will increase.
Michelle Grattan speaks with Nick Klomp about the week in politics.
The Liberal preselectors of Wentworth have selected Dave Sharma, even though Prime Minister Scott Morrison wanted a female candidate.