Landry contested the seat of Capricornia for the first time in the
2010 federal election. Her opponent, long-term Labor MP
Kirsten Livermore defeated her in a 54–46 two-party-preferred vote; an 8-point swing to the LNP. Following the retirement of Livermore in 2013, Landry won the seat in the
2013 federal election. She was reelected in the
2016, the
2019 and the
2022 federal elections. In February 2018 Landry became the National Party's Chief Whip in the House of Representatives. She was replaced by
Damian Drum following her appointment as an assistant minister. In August 2018 Landry was appointed as the Assistant Minister for Children and Families in the
Morrison government. She was additionally appointed Assistant Minister for Northern Australia in February 2020; In May 2025 Landry was appointed as the National Party's Chief Whip.
CFMEU bullying allegations In November 2014 Landry claimed to the media that she, her daughter, and son-in-law, had been targeted with bullying and intimidation by representatives from the
Construction, Forestry, Mining and Energy Union (CFMEU). Landry did not make an official complaint about the alleged harassment to police or the union. The publicly aired allegations prompted the CFMEU's district president, Stephen Smyth to demand Landry apologise to union members and Blackwater residents, and described the allegations as baseless. Smyth said the union was offended by Landry's comments as it fights against bullying on a daily basis. He said that if she had any evidence, she should have taken it to the police.
"Wishy washy" comments In April 2016 Landry drew national attention when she repeatedly aired criticisms to the media about her own government being "wishy washy".
Adani political donations Questions were raised after
Adani attended a fundraiser for Landry's 2019 federal election campaign and made donations of $60,800 to the Liberal and National Parties. Landry is a strong backer of the controversial
Adani Carmichael coal mine project. == Personal life ==