Tony Abbott believes the NSW election result shows the leadership churn in Canberra hasn't caused lasting brand damage to the Liberal Party.
The former prime minister said Saturday's coalition victory was a "personal triumph" for Gladys Berejiklian, who had to overcome some "clever spin" from Labor.
"It's a reassuring sign that the Liberal Party has not suffered lasting brand damage from the leadership churn in Canberra," he wrote in an opinion piece for The Daily Telegraph on Monday.
"The election gave voters a deeper appreciation of her competence and decency and confirmed their judgment she wasn't just better than the alternative, she was actually good at the job."
The federal Liberal party have had three different leaders since being elected to govern in 2013 - Tony Abbott, Malcolm Turnbull and Scott Morrison.
Australian Associated Press