In spite of the 2014 defeat, the SNP's membership has since increased to reach more than 100,000 people by this March, making it the third-largest party in the U.K.. The increase in popularity has largely been attributed to Sturgeon's leadership style.
Not only has the SNP's manifesto and election campaigning been covered in detail, Sturgeon has also taken part in several televised debates in which she was declared the winner.
Sturgeon certainly appears to be enjoying the limelight, saying that the Daily Mail newspaper's remark that she was "the most dangerous woman in Britain" was "possibly one of the nicest things the Mail has ever said about me."
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With her easy public manner and persuasive debating techniques, political leaders in London have become worried about Sturgeon's influence and her manifesto pledge to "shake up the out-of-touch Westminster system so that it serves Scotland better."
That pledge, along with its main manifesto promises to end austerity measures and increase health spending, as well as blocking the renewal of Britain's nuclear deterrent (which is based in Scotland) and maintaining its support for independence, are proving popular with Scottish voters, at least.
The latest poll by Panelbase of 1,044 voters in Scotland between April 20 and April 23 suggest the SNP could see the number of MPs it has in the British parliament rise from six to 53 with the latest polls suggesting that 48 percent of voters support the party.
Since Scotland entered a political union with England in 1707, it has sent representatives to London's parliament, and Scotland currently has 59 parliamentary seats (with each seat representing a constituency). Polls suggest that the SNP could take almost all of these seats, giving it significant representation in the Houses of Parliament.
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The Scottish parliament, by contrast, is made up of 129 Members of the Scottish Parliament (MSPs). It has powers to make laws in Scotland, except on certain matters.
In contrast, support for the Labour party in Scotland has fallen while the Conservatives, a party that has never done well among the predominantly working-class voter base in Scotland, are expected to not win a single seat in the country.
On the party's website it states that a vote for the SNP would allow the party to use its "influence at Westminster to help deliver positive change for the benefit of ordinary people, not just in Scotland, but across the U.K."