Since Doomsday, Canada has had several Prime Ministers.
1984 - 1985: James Lee
James Lee is a Progressive Conservative member from Prince Edward Island. He was the premier of said province at Doomsday and is admired for keeping the province together during the crisis. Along with the premier of Newfoundland Brian Peckford, he founded the Canadian Remainder Provinces and began the process of re-confederation.
However, his time as Prime Minister was only a fill-in until democratic elections could be held in 1985.
1985 - 1989: Clyde Wells
Clyde Wells, a Liberal from Newfoundland, won the election of 1985. He guided Canada away from the horrors of Doomsday and helped to rebuild the nation. Notable events during his time include the negotiations of protectorateship of St. Pierre et Miquelon, contact with Portugal, the separation of Nouveau-Quebec from Quebec proper, as well as several constitutional modifications.
1989 - 1992: Patricia Mella
Patricia Mella, a Progressive Conservative from Prince Edward Island, became Prime Minister after the 1989 election. During her relatively short time in office, the Benjamin Franklin arrived at Canada bringing word of the surviving Australian and South American governments. She stepped down in 1992 due to personal reasons. She was also the first female Prime Minister.
1992 - 1997: Len Simms
Len Simms, a Progressive Conservative from Newfoundland, succeeded Patricia Mella as Prime Minister. It was his idea to send the Canadian Navy to tour the world, making contact with the surviving governments. Thus it was in his time that contact was re-established with the former west coast province of British Colombia, now known as the Republic of Victoria.
However, indecision on his part regarding the attacks by the Lawrence Raiders on Gaspe' seems to have led to his fall in the election of 1997.
1997 - 2009: Georges Farrah
Georges Farrah, a Liberal from Quebec, was the first Quebecois to be elected Prime Minister after Doomsday. His popularity waxed and waned over the years, but for 12 years he held the post of Prime Minister. Farrah heavily involved Canada internationally, an action which has enraged some Canadians, but mostly seems to have been for the better.
However, in the later years of Farrah's government, relations with Saguenay began deteriorating more. This culminated with the assassination of Saguenay's Prime Minister and of a declaration of war. Saguenay's quick blitz through the Gaspe' Peninsula, which broke the people's confidence in him, and in the 2009 election the recently-formed Canada First Party finally took the stage.
2009 - Summer 2010: Walter Natynczyk
The first ever Canada First Party Prime Minister, Natynczyk is actually a native of Winnipeg. He joined the Canadian Forces eight years before Doomsday, in 1975. He served with the Canadian Forces in Western Germany. In 1983, he assumed duties as a Squadron Commander at the Royal Military College of Canada in Kingston, Ontario.
This post was cut short with Doomsday. The details are not clear, but it seems that he and his group met up with Canadian Prime Minister Pierre Trudeau and British Prime Minister Margaret Thatcher, both of whom were in Ottawa and were rushed out of the city when it was learned that World War III had started. They then headed east, to see whether Quebec had survived, and eventually ended up in the Gaspe peninsula, which had survived Doomsday and joined the new Canadian Remainder Provinces. Sadly, Pierre Trudeau died while they were traveling, but Natynczyk has said that his time with him inspired him to go into politics.
However, he stayed in the military for several more years, helping to stabilize Canada. In 1991, he founded the Canada First Party, which tried to limit Canada's exposure to the world at large, lest it bring them into another world war. He also repeatedly advocated a harder approach toward Saguenay than his opponents the Liberals and the Conservatives used. This helped him win the 2009 election, with his Liberal opponent Georges Farrah switching to an anti-Saguenay approach in just the month before the election. Natynczyk promised to militarize Canada to defeat the Saguenay, which to a certain extent he did manage. However, following the results of the LoN investigation into the death of the Prime Minister of Saguenay, and the conclusion that elements of his party had conducted the assassination, the government lost a vote of confidence and fell. They would lose the election.
Summer 2010-Present: Fabian Manning
In the Summer of 2010, following the fall of the Natynczyk government, a new election was held. In a fairly close race, the Conservative Party, playing on their involvement with neither the disaster at the start of the war nor the assassination, managed to gain a fair number of ridings, even if many of them were defections from the Canada First Party. While not enough to win, it was enough so that they were able to enter a coalition government with the Liberals in order to prevent Canada First from keeping power. Their leader, Fabian Manning of Newfoundland, is the Prime Minister, with the new leader of the Liberal Party, Mathieu Garon, as the deputy Prime Minister.