With coordinated tactical voting in this election, the unthinkable could become possible. We pretty much know that Labour will form the next government, probably with a large majority (I’m sure even Tories have placed a bet on that). But such is the country’s visceral loathing for the Conservative party – its lies, entitlement, scandals and incompetence – that millions are now hoping that it will be voted into third place. This could change the course of British politics for at least a generation. Everywhere, including in the foreign media, tactical voting is a huge story. This is the political opportunity of our lifetime. I’m part of the tactical voting website team at Stopthetories.vote, where you type in your postcode and, based on the latest polling, you’re informed how best to vote to make sure that a Tory candidate does not win in your constituency. Others will be using different platforms with the same aim. I will be up all night on Thursday to see the big “Portillo moments” when cabinet ministers and other big names lose their seats. According to YouGov, 22% of us will be voting tactically later this week. All the parties recognise the impact that tactical voting could have. The Tories are terrified of it – after all, it’s the best method we have to rid ourselves of the remnants of a party that has damaged this country beyond all recognition. Because I’ve been on TV for over 40 years, people have always come up to me to chat. Right now, I get stopped constantly, and the subject every time is politics. I’ve never known such anger or so many people who’ve said they’re willing to vote for a party that they wouldn’t usually pick as first choice (be that Labour or Lib Dems or Greens) in order to vote out a Conservative candidate in their constituency. Ultimately, the problem here is with our electoral system, which is antiquated and favours the two-party tit-for-tat. Prof Sir John Curtice has pointed out how the system is biased towards the Tories, a problem that the boundary review has only made worse. That is not a democracy: it’s a rigged system. I’m a believer in proportional representation. I don’t ever want to be in a situation again where we need to vote tactically. We are one of only two countries in Europe – along with that celebrated bastion of democracy, Belarus – that have a first-past-the-post system. In any case, if you see me dancing in the streets on Friday, you’ll know why. Carol Vorderman is a broadcaster and writer. She presents a weekly Sunday show on LBC Radio