I have to say, almost 2 years since the 2016 US election and I'm surprised no issue about this aspect of FTPT come up.
BTW, this situation has happened in Britain too, so it's not just an electoral college unique affair.
I decided 7000 was a good number because it's small enough to be considered not so noticeable but big enough that people would complain.
...........................
The latest legislative elections were extremely close, and bitterly contested. As morning dawned the day after the election it was clear: your party had won the election.... despite getting 7000 less votes than the largest opposition party. This was because opposition politicians often won with huge majorities of votes, while your own straddled to victory with relatively few votes more than their runner-up. Challenges to your legitimacy sprung up faster than some constituencies took to count their votes.
validity: has a legislature
uses First Past the Post as an electoral system
[option] "This is a scandal!" shouts @@RANDOMNAME@@, one of the millions of opposition party voters who has taken to calling themselves 'one of the 7000'. "Our party's lawmakers were elected on average with much bigger majorities than yours were, yet because your voters are more spread out you ended up stealing the election. I say if we are going to be using a majoritarian voting system, at least actually force a majority, or have another election. One we'll win for sure!"
[effect] the fourth election this year is looking particularly exciting
[option] "Relax, this is just democracy at work..." says blasé MP @@RANDOMNAME@@, who won with a majority of 8. "Everybody knew the rules before the election. You go to the polls, you vote, and then whoever gets the most votes wins. Rinse and repeat across all of the constituencies. Just because the other party's winners tended to get bigger majorities than our people did doesn't mean you have to penalise the voters who supported us. I say we get on with the job of governing this great nation, and maybe next time the opposition can be a bit smarter about where they allocate 7001 voters."
[effect] increasingly unrepresentative politicians wonder why the voters are angry
[option] "How about we use a different voting system!" Beams @@RANDOMNAME@@, the newly-elected MP for that one town that was always a bit politically wacko. "Under a proportional system, we would bypass any chance of these sorts of unfair results. Of course, it would mean lots of expenses in educating people how to vote for more than one person, and we wouldn't have a majority government again, but we like democracy here, right?"
[effect] @@LEADER@@'s party and the "We hate @@LEADER@@ party" are negotiating a coalition agreement