Claim: Some 8.1 million of the estimated 11 million to 12 million people "in this country illegally are working."
Fact-check: Two-thirds of the people 'in this country illegally are working,' GOP U.S. Sen. Ron Johnson says 
Verdict: mostly-true
Organisation: PolitiFact
Author: Tom Kertscher
Date published: 2015-10-23T00:00:00