focused on tax cuts for small businesses and companies that make investments in Ontario. Her campaign also criticized the McGuinty government for not soliciting competitive bids for green energy projects, and pledged to have a public bidding process where preference is given to local providers. Horwath distanced the ONDP from former Premier Bob Rae, then the interim leader of the federal Liberal Party of Canada, by pointing out that he is the exception to the rule of NDP Premiers in other provinces who have been able to balance provincial budgets. At the official televised leaders' debate, her political rivals criticized the ONDP's handling of the economy in the early 1990s, but Horwath further distanced the New Democratic Party from Mr. Rae by pointing out his current allegiance to the federal Liberals as interim leader of the (federal) Liberal Party. Her campaign largely refrained from mudslinging and personal attacks, and she led her party to an increase from 10 seats to 17 seats in the legislature. The Liberals were re-elected with a minority government giving Horwath's NDP the balance of power in the legislature. At an automatic leadership review held at the party's provincial convention in April 2012, 76.4% of delegates voted in favour of Horwath's continued leadership. In September 2012, NDP candidate Catherine Fife won a by-election in the riding of Kitchener—Waterloo after the resignation of former Progressive Conservative MPP Elizabeth Witmer. Fife's victory increased the ONDP caucus to a total of 18 seats in the provincial legislature. Further by-election victories in ridings formerly held by the Liberals included Peggy Sattler in London West and Percy Hatfield in Windsor—Tecumseh in August 2013, and Wayne Gates in Niagara Falls. This increased the ONDP caucus to 21 members in the Legislative Assembly. At the 2018 provincial election, the ONDP ended 23 years of third party status, winning 40 seats to become the official opposition–the party's best showing since winning government in 1990. Notably, they took all of Old Toronto (i. e., what was the city of Toronto before the 1999 amalgamation of Metro Toronto) and took eight seats in northern Ontario. They also took all but one seat each in Hamilton and Niagara. At the leadership review held in June 2019 during a policy convention, Horwath received support from 84% of delegates. Horwath resigned after the party lost seats in the 2022 Ontario general election. Peter Tabuns was chosen interim leader on