See #759!
The first amendment you cited actually raised the bar (i.e. made it harder) for illegals to collect Social Security. Santorum voted in favor of this.
The second amendment took money away from states that was set aside for those states to deal with the immigration problem. Santorum voted against depleting the states of those funds.
Did you ever considering checking out these sources yourself instead of copying and pasting someone else's post and end up looking like a complete fool? Or was your deception intentional?