When Bob Spink had the Conservative Whip withdrawn from him I predicted that he would end up in UKIP. I said at the time that they were welcome to him. I haven't changed my mind. This isn't a defection in he normal sense in that most sensible people in the Tory Party (ie those who know him) will be glad to see the back of him. Many of his views are repellant to the majority of the Conservative Party. I'm not saying this out of any sense of bitterness at his actions - I said it at the time. The lack of support for him in the comments both here and on other blogs was telling.
I will make a further prediction. Within six months Nigel Farage will rue the day he ever met Bob Spink. As UKIP's only MP (albeit not elected under that banner) he will have delusions of grandeur and believe that he should be the de facto leader of UKIP. He's that kind of man. For Farage he spells trouble with a capital T.
UKIP's influence is already on the wane. Spink joining them is not likely to improve their fortunes. Indeed, rather the reverse.