Rand Paul actually had a more pro-immigration tone than Marco Rubio's official GOP speech. Here's what Senator Paul had to say on immigration:
Now this doesn't tell us how they'll vote on comprehensive reform. But Paul has been reported to be meeting with Congressman Gutierrez along with Tea Party darling Paul Ryan. So assuming the Tea Party is not going to support immigration reform may be an overreach.
For those who are struggling we want to you to have something infinitely more valuable than a free phone, we want you to have a job and pathway to success. We are the party that embraces hard work and ingenuity, therefore we must be the party that embraces the immigrant who wants to come to America for a better future.
We must be the party who sees immigrants as assets, not liabilities. We must be the party that says, “If you want to work, if you want to become an American, we welcome you.”