Labour and the Tories are keen to talk down the amount of influence the SNP are likely to have after the general election.
David Cameron's manoeuvrings in Northern Ireland give the lie to this though. He has been wooing the Ulster Unionists assiduously and has entered into a pact with them. It's caused him a number of headaches but the hassle can't be for no reason.
Analysts say it is because the next Parliament is going to be tight. How many UUP MPs are there? One.
And she's not happy with the alliance. Lady Hermon is now standing as an independent meaning it's even possible there won't be any UUP MPs in the next parliament.
Make no mistake about it, any number of SNP MPs is going to have a major effect. The larger the number, the more beneficial that will be for Scotland.