How is that in any way equivalent? The American government/legislature doesn't force you to adopt any particular view of the 2020 election. You can say Biden won or you can say it was defrauded by dead people and Trump actually won.
You're allowed to say either one and you can train an LLM to say either one.
...have you seen the current administration being grilled by congress members?
They are actually properly unable to say "Biden won the 2020 election" because that's against Dear Leader's views. They will say anything similar like "was confirmed as...", but those exact words will NEVER come out of their mouth.
Yes, but do you have any indication that this applies to American LLMs?
Not yet, but we're only 1,5 years into this current regime.
They've already hit Anthropic once with a big government hammer (Fable release). There's no indication they won't do it again to force the LLM to have Correct Opinions.