Policies that spurred Dutton to challenge

PETER DUTTON'S REASONS FOR CHALLENGING MALCOLM TURNBULL

* Peter Dutton says he believed he was the best person to lead the Liberal Party to success at the next election.

* He thinks a Liberal win at the ballot box depends on it getting its policies and messaging right on bringing down electricity prices.

* The former home affairs minister also wants the party to "do more" on infrastructure and the pressures being put on cities from immigration.

* Spending more on water to help farmers struggling with the drought is also on Mr Dutton's agenda.

* Health, education and aged care are other areas he thinks deserve "record investment".