Shocking as t may seem, this week saw the 25th anniversary of a great 1990s Lib Dem triumph – when we won the Littleborough and Saddleworth by-election. It was the first big by-election I had ever been to and I loved it. I wrote here about meeting by-election legend Pat Wainwright there. She greeted us with smiles and very clear instructions about what work we were to do. She wasn’t afraid to tear a strip of me for doing something…