Why are democrat politicians fighting the SAVE America act?

There have been very few things that the Democrats have been fighting as hard for even though %70 of democrat voters and 85% of all Americans want this bill voted onto law. Only 5% of democrat politicians are in favor of it. They are purposely ignoring the will of their constituents. Why are they doing this?

If there is voter ID it will be harder for them to cheat.
If there is proof of citizenship it will make it harder for them to cheat.
If mail in ballots are limited it will make it harder for them to cheat.
If ballots must be received by Election Day it will make it harder for them to cheat
All of the above
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Why are democrat politicians fighting the SAVE America act?
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