Tariffs certainly are.

Got it for you.

It’s not a double check at the polling station. They simply need to confirm that you showed up and voted today, and have a way to ID you. The actual check, that you are legally allowed to vote, and that you are actually who you say you are, and that you aren’t allowed to vote anywhere else, all happened when you register to vote. That is a long process, and that’s why it is done before you actually need to go vote.

Every difficulty you build to try to make harder for your enemy voters to cast their vote is a difficulty you set up also for your voters.

Elections are run by the individual states (unless something egregiously unconstitutional is going on) which allows the governor and even local election officials to make decisions that affect how hard it is to vote almost down to a street level basis. If you don’t want people from blue areas to vote, you just put in fewer polling stations, and make them in less convenient places for areas that skew blue on the map. So adding 30 seconds to the voting time doesn’t really matter for a rural station that might need to service 100 people in a day, but for an inner city location that might need to service 100 people a minute those 30 seconds per person really add up.

The check in the US is done when you register to vote. Once you are registered, a variety of proofs of ID can be used to vote at your polling location.

Requiring a passport and birth cert or some other strong ID are unnecessary at the actual voting site. The main reason for doing this is to make voting take longer, and be more strenuous, which means that you can have a greater effect on election results by manipulating the number of polling stations for an area.