The outspoken critic of Zionism, Islamaphobia and western imperialism has been tossed out of parliament before when he was a Labour Party MP but resurfaced in another district under the Respect Party name in 2012, winning a 10,000 seat majority, and many of his haters today are Labour Party members consoling themselves for their party's poor showing in today's elections by gloating about Galloway's loss.
Galloway is a good example of what happens to a politician when he or she steps too far out of line, meaning goes outside the bounds of discourse dictated by the ruling class. He's known for his combative interviews with mainstream media journalists, often criticizing them for how they narrow debate by how they frame issues with their questioning and often beginning an answer with something to the effect, "Now that's just a stupid question..."
Also, Galloway being staunchly anti Zionist and anti Israel leaves him open to charges of antisemitism in Britain which is even more pro Zionist than the US and where organizations like AIPAC aren't really necessary. He's somewhat of a hero however to supporters of Palestine including me.
Most exit polls for today's general parliamentary elections show Labour coming in 100 seats behind the Conservative Party of current Prime Minister David Cameron. The UK Labour Party is in a similar predicament to the Democrats in the US, having been turned into a junior Conservative Party that's liberal on social issues much like Bill Clinton and Al Gore transformed the Democrats, taking out of the party what was left of its class consciousness and therefore most of it's fight by limiting its ability to offer people much of a distinct alternative to conservatism.
The big news out of the UK elections is the big gains by the Scottish National Party, picking up as many as 58 seats mostly at Labour's expense. Both Labour and Conservatives oppose Scottish indpenedence and campaigned against it prior to September's unsuccessful referendum in Scotland. Both parties have said they won't enter into a government with the SNP, which could make for some interesting post election news as neither major party will likely win a majority.