The indictment stops the clock on the statute of limitations.
>>>A statute of limitations is a statutory limitation on the prosecution of an offense if the formal prosecution is not commenced, usually by return of an indictment or filing of an information, within a specified period after the completion of the offense.<<<
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Based on the information that is public (not much) this seems like a very weak case.
It's ironic that the Biden administration allowed the statute of limitations to run on charges against Trump that could (potentially) have been filed based on the Mueller report.
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https://www.lawfaremedia.org/article/where-justice-department-trump-obstruction-offenses
Take the chart above with a grain of salt because it does not take into account the Supreme Court ruling granting presidents almost unlimited immunity for criminal acts committed while they are in office (i.e. it doesn't really matter anymore if there is rock solid evidence of a crime by a president, the only question is if the conduct in question was an official act)(I'm simplifying the decision greatly, but that's the gist of it).