Via Share The Facts:
David Cameron has explained in an email:
On Thursday, your friends and your family face a stark choice.
Vote Conservative and they can have a strong economy and a stable government – and I will keep working through our long-term economic plan as Prime Minister.
But a vote for anyone else would lead to chaos. Ed Miliband, propped up by the SNP, would wreck our economy with more borrowing, more debt and more taxes.
Please vote Conservative on May 7.