That's IMO one of the problems of nuclear. It's politician-unfriendly.
So let's suppose that you're elected President. You want to build nuclear. Chances are pretty good not a single will get completed during your term, which means you won't get to take credit for that achievement. If it all goes well, the main beneficiary will be your successor. If it goes wrong (including just being plain unprofitable), it'll be your legacy.
And unless your only mission in life is to get nuclear built, that's a bad thing because there are other things you probably want to achieve. Nuclear is unfortunately so big and so expensive that it constrains your other options.
So let's suppose that you're elected President. You want to build nuclear. Chances are pretty good not a single will get completed during your term, which means you won't get to take credit for that achievement. If it all goes well, the main beneficiary will be your successor. If it goes wrong (including just being plain unprofitable), it'll be your legacy.
And unless your only mission in life is to get nuclear built, that's a bad thing because there are other things you probably want to achieve. Nuclear is unfortunately so big and so expensive that it constrains your other options.