The Scottish National Party has said new research shows that voters have backed them "in increasing numbers" since the 2005 general election.
Ahead of the party's pre-election conference in Aviemore, which began today, the SNP claimed there has been "a seismic shift" in Scottish politics, with 135,000 more votes cast since 2005 for the SNP than any other party in Scotland.
The research looked at all elections in Scotland since the last Westminster campaign.
Of the 7.4 million votes cast in Scotland since 2005 the SNP got 31 per cent or 2.3 million votes, with Labour receiving 2.17 million or 29 per cent of votes.
The SNP currently has seven MPs in the Commons, one of whom, John Mason, took Glasgow East from Labour in a 2008 by-election.
They have claimed they would win up to 20 seats at the general election, expected to be called for May 6.
"There has been a seismic shift in Scottish politics," said SNP business convener and Stirling MSP Bruce Crawford.
"Voters are no longer faced with the one party machine favoured by the politicians in Westminster.
"Over the last five years Scotland's voters made their choice clear, they have rejected typical London politicians and voted for something different with the SNP in Holyrood, in Europe and in their communities.
"As Scotland faces another election the Westminster expenses scandals, banker's bonuses and illegal wars have all taken their toll on a tolerant public.
"At this election there is a real opportunity for Scottish voters to not just elect another Westminster politician who will serve themselves instead of serving the community but to elect a local and national champion who will always put their interests first."
The SNP will campaign on on fair fuel prices, "protecting Scotland from Labour and Tory cuts," supporting businesses and "ensuring access to the resources to create thousands of new jobs".
Analysis of all votes cast between 2005 and present day:
SNP - 2,308,119 votes cast since 2005 - (31 per cent)
Labour - 2,172,665 votes cast since 2005 - (29 per cent)
Tory - 1,166,851 votes cast since 2005 - (16 per cent)
LibDem - 990,518 votes cast since 2005 - (13 per cent)
Others - 833,761 votes cast since 2005 - (11 per cent)
The votes are the accumulated totals of all elections held in Scotland since the 2005 Westminster election:
• The 2007 Scottish Parliamentary elections
• The 2007 Scottish Council elections
• The 2009 European elections
• All Scottish and Westminster Parliamentary by-elections since 2005 (Livingston, Cathcart, Moray, Dunfermline W, Glasgow E, Glenrothes, Glasgow NE)
• All First-Past-the-Post Council by-elections in 2005 and 2006
• All 1st Preference votes in STV Council by-elections since 2007
Dods Parliamentary Communications Ltd