We already have it - it’s called the Tea Party.
The UKIP has been around for 20 years and to date has done very little.
The Tea Party very quickly pried the House from the grip of the Democrats.
The problem with the Tea Party, is that they are trying to work within the Republican Party, whose reputation is so damaged now that even most people on the Right despise it, beyond the point of the party being salvageable.
There needs to be a clean break.