Huckabee was acting in Arkansas against legislation that viewed as very redundant. Also, I want a President who is willing to learn and grow.
You know what the interesting thing is, EVERY single one of the GOP candidates (with the sole exception probably being Duncan Hunter) was "weak on illegal immigration" in the past when they were in office and had a chance to do something about it. That's why we're in the mess we're in now, because most elected officials were AWOL. Even Ron Paul, who now claims to be 100% for building a border fense, voted NAY when it originally came up.
But it when it comes to campaigns, the only ones who seem to be able to ADMIT their candidate was wrong in the past and has now corrected his position is the Huckabee camp. The rest of the GOP field seems to have blind worshippers who will insist THEIR candidate was always a staunch leader of "secure the borders" no matter how many times you can post voting records that show otherwise.