40% of the illegals get here legally and overstay their visa. Strengthening the border will not solve that problem.
Excellent point about the visa overstay...they stay here because they can make money here (or collect money here...or get free medical care). Dry that up, and a HUGE part of the problem goes away.
Palin ran in 2008, she’s had enough time to figure that out - if she wanted to.