The strength of feeling in the party was highlighted on Sunday when 20 current and former Tory constituency association chairmen delivered a letter to No 10 warning that the bill would inflict "significant damage" to the party in the runup to the next election.
That means standing down in his Yeovil constituency next time and seeking 'a last challenge'.
Its executive Loren Treisman says: "It's exciting to see a technology-driven project targeting such an unexpected constituency.
But we all feel it's crucial that Caroline Lucas, the Green party's sole MP at this time, should be re-elected in her Brighton constituency on 7 May.
The former Ukip candidate also claims that the new Conservative MP, whom he has known for about 30 years, handed him a leaflet template attacking Labour's record on immigration that he recommended Rose distribute in the areas of the constituency he highlighted as being home to potential Labour/Ukip swing voters.
But, just two days after polling from Lord Ashcroft put Clegg two points behind Labour in the constituency, the visit also marked the beginning of a long Easter weekend of hard canvassing for the Liberal Democrat leader.
Better Together nailed down who Scotland's undecided voters were and where they lived: it treated Scotland as one vast marginal constituency, not a patchwork of regions.
There may be questions, too, about his alleged role in the IRA, particularly in the 1970s, and the "disappearance" of a west Belfast mother whose remains were found only a few years ago in the constituency in which he is now standing – claims he has always denied.
After a visit to the constituency, the Labour MP Tom Watson stirred the pot by saying: "I have never encountered such animosity on the doorstep against an incumbent MP – particularly one as high-profile".
The only South Yorkshire seat that is not a Labour stronghold, Sheffield Hallam is often described as the most affluent constituency outside the south-east.
McGrady unseated Powell in the South Down constituency in Northern Ireland in the 1987 general election, winning it for the Social Democratic and Labour party (SDLP), which still holds it today.
