Warner was elected United National Congress Alliance chairman and co-leader, to lead the party into Trinidad and Tobago's 2007 General Election. They won 15 of 41 seats, and Warner was elected as the Member of Parliament for Chaguanas West. Patrick Manning's PNM government, which had comfortably won the 2007 election, called an election less than three years into its mandate. Warner's UNC party formed a coalition with four other parties and won 24 May 2010 elections by a landslide margin of 29 of 41 seats in parliament. Warner was re-elected in Chaguanas West with the highest national vote total. He has described the previous Trinidadian administration as the "most corrupt ever" and has pledged to enforce hanging as a method of execution. Warner has said, "It is inconceivable to have 295 on death row awaiting the hangman...when no one is trying to apply the law." After the 2010 election, Warner was appointed the Works and Transport Minister in Prime Minister Kamla Persad-Bissessar's government. Opposition leader Keith Rowley wrote to the Integrity Commission questioning Warner's ability to be a FIFA Vice President, while also the Trinidad and Tobago Works and Transport Minister. Government counsel concluded that Warner was not breaking any laws, Attorney General Anand Ramlogan said that Warner did not receive a salary from FIFA, Trinidad benefited from Warner's appointment, and his two positions were unlikely to conflict. Although Warner was allowed to withdraw from football-related activities by FIFA with a presumption of innocence in the CFU scandal of 2011, a videotape played during FIFA's disciplinary process was consequently made public. Prime Minister Kamla Persad-Bissessar referred the videotape to the Attorney General of Trinidad and Tobago without endorsing or condemning Warner. Warner resigned as Minister of National Security on 21 April 2013 and was replaced by Emmanuel George. Warner resigned as Chairman of the United National Congress on 22 April 2013, and resigned as Member of Parliament for Chaguanas West four days later, triggering a by-election in his constituency. Warner subsequently formed a new political party, the Independent Liberal Party (ILP), and won the by-election for Chaguanas West on 29 July. Warner contested Trinidad and Tobago's 2015 General Election held on 7 September 2015 in the Chaguanas East seat. Warner received 771 votes (4.30%) and failed to win the seat in the election. After a long-running political feud, Surujrattan Rambachan sued Warner for defamation. In July 2016, Warner agreed to