How is a coalition government formed?
When a election winning party does not have enough of the % vote to govern/rule on its own – that party will look for another party (that they can get along with) who with there % vote (added together) will give the winning party an overall % ‘working’ marjority. When that happens all sorts of deals are done ‘behind the scenes’ – the smaller party demanding this or that for there agreement – incuding positions in the ruling winning parties government appointments. Its always trouble when this happens because if the minority party withdraws its support (as sometimes they do) the ruling government party will collapse and another election will have too be called.!! All government parties have to have a working % majority – if not they will be out voted on issues all the time and will not survive.