It happened because changes were being discussed and the border was not secure.
That is a gracious way of describing what happened when Bush first brought up his proposal....LOL:-)
I recall being up to my neck in exchanges with Sabertooth and it was not pretty. The premise of a guest worker program was slammed unmercifully, as well as the proposer, the president.
The day the amnesty word was used, the spikes in crossings began and that was about two years ago IIRC.
It is still being used, the program is still being slammed, as is the president, and you blame the extra crossings on him as well........hmmmmmmmmmm.....
Just thought I would do my best to set that matter straight.