The author discusses the Nepean by-election, highlighting the absence of a Labor candidate and the implications for the upcoming state and federal elections. The by-election was triggered by Liberal MP Sam Groth's resignation, causing a vote in a seat that includes diverse communities. The author criticizes Groth's actions and the Labor party's decision not to field a candidate. The by-election will serve as a test for the One Nation party and the Liberal party. The author mentions the candidates, including the Liberal candidate Anthony Marsh and One Nation's Darren Hercus. The author also mentions other independent candidates and the Green Party candidate. The author attended the pre-poll voting, where he observed the candidates handing out guides. The author believes the vote will reveal the direction of Australian politics in the next two years. The author anticipates Labor will use negative campaigning. The author includes additional news items, such as the plan to punish war memorial vandals and the cost of the Snowy 2.0 project.