You can always look at the documents themselves
In California, any new tax like this has to go to the voters. I suspect that it has been poll-tested.
In much of the US, living together and presenting yourself as married over a period of years means you're actually married.
I'm not usually a participant in them. Feel free to do so yourself if you are.
The big group this impacts is married women — in particular it has a name-matching requirement which will block a large fraction of married women from voting. They're doing this because women have consistently been more likely to vote for Democrats than men:

This makes it very much worthwhile for Americans to ask their Senators to block this legislation by any means necessary.
The goal here is to keep women from voting: the SAVE act very specifically requires that you
- Prove citizenship
- That you prove that the name on your citizenship document (eg: birth certificate) match your current name
Because women often change name when they get married, they'll have a mismatch, and need to spend time and money to be able to vote. If the legislation passes, it will block about 20 million Americans from voting. Because of gender disparities in voting, Republicans see this as to their advantage.
Give your Senators a call at 202-224-3121 and ask them to block this change.
This is the United States, so they're imposing a requirement that somebody not just have a state-issued photo ID, but have a birth certificate or passport which matches their current name. It's very common for women to change their name when they get married, so the net effect if this passes is to prevent tens of millions of married women from voting.
Republicans want that because women are more likely to vote for Democrats than men.

The key requirement in it requires you to have ID with the same name as proof of citizenship. Because women frequently change their name when they get married, it means that they won't have matching documents, and won't be able to vote.
Call your Senators at 202-224-3121 and tell them to vote against it.
He still seems to have enough support among white evangelicals to prevent that. Probably an embarassingly low double-digit result.
No. They're just building concentration camps.