Earlier quoted context omitted.
The difference in this instance is that all of the major parties have stood aside, leaving the Clacton by-election as a race between Nigel Farage and Count Binface. Essentially it's turned into an election between Farage and anyone-but-Farage. I sincerely hope the best alien wins.
I don't understand what this is, can someone explain? Clacton seems to be a town in the UK, are they campaigning for mayor? What's the relevance, why is Farage even involved?
Farage announced his intention to stand in this by-election (which he is entitled to do), arguing that only his constituents had the right to decide whether he was fit to be a Member of Parliament. He argues that the Standards Committee is fundamentally illegitimate because he would be judged by his political rivals; in any case, the greatest sanction the committee could impose would be his expulsion from parliament, which would trigger a by-election that he would be entitled to stand in. The other major parties have all decided not to stand candidates against Farage in the Clacton by-election, creating this slightly farcical contest between the incumbent and a joke candidate.