Former prime minister Scott Morrison has announced he will retire from politics at the end of February, ending a 16-year career in federal parliament, including four served as prime minister.
Mr Morrison had initially indicated an intention to stay on in federal politics after the Coalition's May 2022 election defeat, sitting on the backbench.
The decision will trigger a by-election in the southern Sydney seat of Cook, a notionally very safe Liberal seat.
The ABC has also been told two people who could run as Liberal candidates in the Cook by-election are Carmelo Pesce, the current mayor of Sutherland Shire, and Simon Kennedy, the Liberal candidate for Bennelong in 2022.