Didn't read anywhere that she wasn't a legal resident up to that time (might've missed it). The existing laws make allowances for people in her situation; good for her & her kids to go after it. How many look at a tax deduction that is in the US internal revenue code and say, "nah, I won't take that 'cause I theoretically disagree with it"? Thought so.
Now about those next 700,000 illegals that the quislings in WashedupDC are going to reinforce amnesty for...