The public key in the CSR should match the private key it's associated with so this wouldn't work. Also the notBefore date in the certificate is set by the CA; it's not in the CSR.
I'll be voting LibDem too. They stand up for civil liberties more than Labour or Conservative. Hell, I would vote for a party that had Ron Paul's values and I am far from being right wing. At least he would strongly fight against the erosion of civil liberties and that's the top priority for me.