What is the form "undocumented" illegal aliens were supposed to file ...

[kaz]

... when they were running across the desert.

So liberals, you have this canard with illegal aliens they were just "undocumented." Other than that, running across the border, putting their kids in American schools and filing for welfare would be perfectly fine.

So ... what is the form they forgot to file ... that would have made everything OK ... while they ran across the desert ... so?