On the morning of 26 February, the Nationals held a party room meeting at which Joyce formally resigned to the backbench. McCormack was seen as the favourite to become leader, and was the only declared candidate as at 25 February. At the meeting he secured the support of a majority of the 21 National Party parliamentarians, seeing off a last-minute challenge from Queensland MP George Christensen.[2][3]
Prior to the events of February 2018, Joyce was viewed as a charismatic leader,[6] who had been re-elected as the member for New England with a substantial and increased majority in a December 2017 by-election. He maintained the support of a majority of his party members even as scandals unfolded, with some exceptions including the party's Western Australian branch and Andrew Broad.[7][8]
Under the Coalition agreement between the Liberal and National Parties, the Nationals' leader serves as deputy prime minister in a Coalition government. Therefore, the decision of National Party members would determine who succeeded Joyce as deputy PM. Following the 2016 election, sixteen National Party MPs sat in the Australian House of Representatives (including six from the Queensland Liberal National Party, and Joyce himself as a backbencher since his announcement). Some of the highest-profile National Party parliamentarians, namely deputy leader Bridget McKenzie and Resources Minister Matt Canavan, sit in the Senate; no senator has served as deputy prime minister in the history of the position.