The 2010 UK election, announced today by prime minister Gordon Brown, marks the first time that Twitter has been in widespread use in the UK during a political campaign. In order to track UK political trends on the popular social networking tool, Reuters commissioned market research agency Crimson Hexagon to analyze what people were saying about politics on Twitter. While they turned up some pretty graphs, they also outlined some interesting facts. Most notable was the fact that UK politico traffic on Twitter could be trended from week to week, with strong anti-Tory sentiment showing as constant…