Mulroney was very unpopular. The PCs ended up dropping from 33.8% to 6.4% and the NDP increased their vote share slightly. The Liberals increased their vote share to 34.4%. 1991-2002: The NDP's fall and the Liberals' success By the time the 1993 election campaign started, the NDP was also very unpopular. Liberal candidate Ivan Grose did win, but the Liberals' vote share didn't go up much. This was the same election that the Liberals nearly swept Ontario. In 1996, the riding was once again modified. It would lose the part of the riding east of Harmony Road and north of King Street (former Highway 2), but it would gain the area west of Ritson Road between Rossland Road and Taunton Road. The 1993 result for each party did not vary more than 1.2% when redistributed to the new area of the riding. In 1997, the PCs and the NDP rebounded slightly et the expense of the Liberals and the Reform Party and Grose was re-elected by a slightly smaller margin. In 2000, the Liberals increased their vote share and their margin of victory by about 5%, mostly at the expense of the NDP. In 2003, the riding was expanded. Initially, the district would consist of the area of Oshawa south of Rossland Road as well as the area east of Ritson Road south of Taunton Road. However, area MP Judy Longfield objected, by which point the proposed boundaries had changed to south of Rossland and south of Taunton west of Ritson. Longfield proposed, citing support from MP Ivan Grose and Oshawa City Council, that the district be changed from the previous version to not include the area west of Simcoe Street north of Rossland Road and the Oshawa Creek north of former Highway 2, but include the area east of Sincoe Street up to Winchester Road. A new Whitby—Oshawa riding would cover the rest of Oshawa. This proposal ended up being implemented. The redistributed result showed minimal change. 2004-2011: The Conservatives take the riding In 2004, there was some infighting in the Liberal Party. Grose ended up losing the Liberal nomination for that year's election. It was instead won by Louise Parks. The NDP nominated Sid Ryan, a well-known labour leader. That year's election ended up being very close. Sid Ryan was within 500 votes of Conservative candidate Colin Carrie. Liberal candidate Louise Parks was within 1400 votes of Carrie.