From his speech today at the National Hispanic Prayer Breakfast:

There’s a lot of emotion on this issue, and it makes sense to have people from around the country come and sit down with members of Congress to talk rationally about the issue.
Our responsibilities are straightforward — we’ve got to enforce the border, basic duty of a sovereign nation. We’ve got to create a lawful way for foreign workers to fill jobs that Americans are not doing. Our economy depends on them. And we must resolve the status of illegal immigrants already in our country without amnesty and without animosity, because that is the only practical way to fix the problem that has been decades in the making.