Apparently it already started in the local edctions.
www.independent.co.uk/news/uk/politics/english-defence-league-backs-ukip-in-local-elections-8562350.html
I expect to see the media giving Robinson much more publicity near the time of the real election where he will explain in detail which party he supports and then UKIP's opponents may say things similar to what some of them said at the local elections
"Last night a senior Labour source said: “Ukip should be ashamed that their rhetoric and policies have such appeal to those on the far-Right who want to stir up hatred.”
Natalie Bennett, the Green Party leader, said: “I think many voters who might have been thinking of voting Ukip as an expression of frustration with the sheer incompetence of this government, or out of a desire for a new economic direction, will now be thinking again as this news gets out.”
She added that Ukip were “not a serious political option”.