The Bloc Québécois threatened to topple the government if the Tories did not give an additional $3.9 billion to Quebec. Support for the Conservatives in Quebec was up during the 2006 election campaign due to  Harper's promise to deal with the matter.
The Bloc Québécois threatened to remove the government if the Conservatives didn't give Quebec more money. This prompted a rise in Conservative support in Quebec during the 2006 election because of Harper's pledge to deal with the matter.