Trump's team and the GOP need to file for Mail cover for everything that came in over the last 30 days to have the data.

We can do some very useful things with this, even if there aren't definite identifying marks. When you are able to determine the amount of ballots which were returned actually through the mail and compare with the number of supposedly mailed in ballots, large discrepancies will surface - in particular areas of fraud. This is extremely powerful evidence, but we need all of these photos to be retained starting (literally) yesterday.