Bias gives 'swing state' voters more influence over US trade policy

Original article: "A swing-state theorem, with evidence" - https://www.sciencedirect.com/science/article/abs/pii/S00221...

I mean it makes sense. If someone knows which way you are going to vote with a near certainty, why would they work hard to win it? Imagine if California or Texas was a swing state. Things would be very different...