You can take measures any time you want to. In fact legal measures (court challenges) are already being pursued. If you are referring to illegal measures than i suspect if you chose now to make your stand than you would have a pretty tiny army and would end up in jail pretty quick. At the end of the day i have no idea what the straw would be to break the proverbial camels back but my take is there are better legal options at this point - like getting JT's government out via a confidence motion. Before we do that though we need to provide an electable option so we don't end up right back where we started.