There are currently 12 political parties represented in the House of Commons. Come the election, this number could fall to 10. There’s a chance that both the Alliance party of Northern Ireland and Respect could lose their sole MPs: respectively, Naomi Long and George Galloway.
Long has a majority of 1,533 in the seat of Belfast East, which she won in 2010 from DUP leader Peter Robinson. The DUP needs a swing of 2.2% to win it back.
Galloway won Bradford West from Labour at a by-election in 2012 on a mighty swing of 36.6%. Labour needs a swing of 15.5% to take it back, but has struggled to find a candidate.
Were both Long and Galloway to lose, it would continue a rather brutal tradition in parliament for small parties to be entirely wiped out at elections.