Cunningham and MacDonald were re-elected in 1949 but were reduced to third party status behind the Robert Stanfield-led Progressive Conservatives.

From 1942, the party was known as the Progressive Conservatives, until 2003, when the national party merged with the Canadian Alliance to form the Conservative Party of Canada.

From 1957 until 1993 Fredericton returned Progressive Conservatives.

In the 1957 election, the Liberals won 200, 000 more votes nationwide than the Progressive Conservatives ( 40. 75 % Liberals to 38. 81 % PC ).

* 1958 – In the Canadian federal election, the Progressive Conservatives, led by John Diefenbaker, win the largest percentage of seats in Canadian history, with 208 seats of 265.

In the election of 1979, Trudeau's Liberal government was defeated by the Progressive Conservatives, led by Joe Clark, who formed a minority government.

The Conservatives won 49, the newly-formed Progressive Party won 58 ( but declined to form the official Opposition ), and the remaining ten seats went to fringe parties and Independents ; most of these ten supported the Progressives.

* August 30 – The Progressive Conservatives under Peter Lougheed defeat the Social Credit government under Harry E. Strom in a general election, ending 36 years of uninterrupted power for Social Credit in Alberta.

The federal Progressive Conservatives under Joe Clark refused to participate in these talks, but there was strong support from many provincial Tories, especially in Ontario and Alberta.

Under the leadership of Reform / CA activist Randy Thorsteinson, the new party never sought a formal link with the CA, and if it had done so the overture would likely have been rebuffed since many Albertan CA members continued to support the Alberta Progressive Conservatives.

The new party was dubbed " the Alliance Conservatives " by critics who considered the new party a " hostile takeover " of the old Progressive Conservatives by the newer Alliance.

The Christian left ( along with the secular and anti-religious left ) became supporters of the New Democratic Party while the right moved the Social Credit Party, especially in Western Canada, and to a lesser extent the Progressive Conservatives.

In 2003 the Canadian Alliance and the Progressive Conservatives merged to create the Conservative Party of Canada, led by Stephen Harper, a member of the Alliance Church, who went on to become prime minister in 2006.

The Liberals had won the 1974 election by attacking Robert Stanfield's Progressive Conservatives over their platform involving wage and price controls.

By late 1982, Joe Clark's leadership of the Progressive Conservatives was being questioned in many party circles and among many Tory members of Parliament, despite his solid national lead over Prime Minister Pierre Trudeau in opinion polls, which stretched to 19 percent in summer 1982.

The Progressive Conservatives were no longer recognized as a political party in the House of Commons, since the required minimum number of seats for official party status is 12.

In her memoirs, Time and Chance, and in her response in the National Post to The Secret Mulroney Tapes, Campbell stated that Mulroney left her with almost no time to salvage the Progressive Conservatives ' tattered reputation once the bounce from the leadership convention wore off.

Mulroney joined the Conservative Party of Canada following its creation in 2003 by the merger of the Progressive Conservatives and the Canadian Alliance.

He made a political comeback in 1998 to lead the Progressive Conservatives before its dissolution, serving his final term in Parliament from 2000 to 2004.

He served as President of the University of Alberta Young Progressive Conservatives, and eventually served as national president for the young PCs group.

He was unsuccessful in his first foray into politics as an official constituency candidate for the provincial Progressive Conservatives in the 1967 provincial election.

It also did not help that the Progressive Conservatives lost a string of by-elections on May 24, 1977.

Nonetheless, Clark's Progressive Conservatives won 136 seats to end sixteen continuous years of Liberal rule, falling just short of a majority, as they could only get two seats in Quebec.

The Progressive Conservatives had also won the popular vote in seven provinces.

Rosselló's unsuccessful attempt to unseat Senate President McClintock, split the New Progressive Party, a split that continued as Rosselló initiated a fourth bid for the governorship against Resident Commissioner Fortuño in an internal primary that was held March 9, 2008, and which he lost.

In the 1979 election, Sauvé won the riding of Laval-des-Rapides, but the Liberals lost their majority in the commons to the Progressive Conservative Party, and Sauvé thus lost her cabinet position.

Initially leading in the polls, Soong narrowly lost the election with 36. 84 % of the vote to Chen Shui-bian of the Democratic Progressive Party with 39. 3 %.

Rossello lost the New Progressive Party Gubernatorial Primaries, 2008

*** Lee Ying-yuan 李應元 / 李应元 ( 1953 ; ancestral Zhao ' an, Fujian ; born in Lunbei, Yunlin, Taiwan ), Secretary-General, Executive Yuan, 2005 ; Secretary-General, Democratic Progressive Party, 2008 ; Ran and lost to Ma Ying-jeou, Taipei Mayor Elections, 2002

Bethmann Hollweg, all credibility and power lost, remained in office until July that year, when a Reichstag revolt, resulting in the passage of the famous Peace Resolution by an alliance of the Social Democratic, Progressive, and Center parties, forced his resignation and replacement by the political nonentity Georg Michaelis.

The Progressive Democrats lost six of its eight seats in the 166 seat Dáil.

Fine Gael failed to win re-election in the 1987 general election, and lost 20 of their 70 seats, most to the new Progressive Democrats party.

His government was re-elected twice with reduced majorities, in the 1986 and 1989 elections, though Getty lost his own Edmonton-Whitemud seat in 1989 and had to run in a by-election in Stettler, which was vacated by Progressive Conservative victor Brian C. Downey.

This campaign strategy failed, as the Bloc lost seats to the Liberal Party due to the collapse of Quebec support for the Progressive Conservative Party, whose voters shifted to the Liberal Party.

The Progressive Conservatives lost support after Davis retired and right-wing candidate Frank Miller was chosen as their new leader.

The Progressive Democrats also lost seats, but held the balance of power.

Following the poor performance of the Progressive Democrats at the 2007 general election in which the party lost 6 of its 8 seats, including that of party leader Michael McDowell, Harney resumed her role as party leader.

The Progressive Conservatives won a minority government under the leadership of Joe Clark, but lost a parliamentary motion of non-confidence later in the year.

Though they recovered slightly in the 1997 election, the Progressive Conservatives lost seats in 2000 and would never be a major force in Canadian politics again.

The Liberals lost two seats to the NDP in late 1984 by-elections, and another caucus member defected to the Progressive Conservatives that same year, claiming that Peterson was an ineffective leader.

He ran for the riding again in the 1985 provincial election, and lost to Progressive Conservative candidate Jack Pierce by 278 votes.

The CPUSA lost more allies when, under orders from the Comintern, it withdrew its previous enthusiastic support for the Progressive Party candidacy of Robert La Follette, Sr. for President in 1924.

While most Tory supporters and members joined the new party, the Progressive Conservative Party itself was not disbanded, as the party would have to forfeit its assets to the government if it ever lost its registration.

McDowell led the Progressive Democrats to a disastrous performance in the 2007 general election, in which the party lost six of its eight seats in Dáil Éireann, including his own.

It was only the second time the Progressive Conservatives had lost a seat in Alberta since 1968.

In March 2002, Day lost that leadership race to Stephen Harper, and on April 10, most of the DRC members returned to the Alliance caucus, terminating their coalition agreement with the PCs after Clark rebuffed Harper's attempts to seek a greater union between the Canadian Alliance and the Progressive Conservatives.