Convincing arguments from Peter Kellner about why a progressive pact between Labour, the Lib Dems and the Greens is not going to happen at the next election. As Kellner puts it, he would like to see Arsenal win the Champions League but that isn't going to happen any time soon either: https://kellnerpolitics.com/2022/01/05/a-labour-lib-dem-green-alliance-to-fight-the-tories-why-it-should-happen-and-why-it-wont/
As he notes towards the end of the article, informal local pacts are possible whereby a party puts up a candidate but doesn't campaign too hard to help the progressive party with the best chance of winning.
