Yes Pew is a valid source, and it is in line with Federal agency numbers, and any other widely accepted numbers, You still have not posted any valid sources for how many illegals are in the US today.
What's next, Mexican government "data"?
And as far as federal "agency" numbers, those are routinely debunked on this website. Would you be one of those DU trolls? I'd say so. They're in luv with Fedgov. We aren't.
But let's note that what you said is also a falsehood: I posted the Border Patrol apprehension statistics and then used them in a statistically conservative way. Gee, isn't that one of your precious federal agencies?
Maybe you like to pick and choose only data that supports your assumptions!
In which case, you should get a job as a climate change propagandist. Mr. Gore is looking for you!