I appreciate that Marco Rubio has called for immigration reform but he goes back and forth on it a little bit.

Senator Obama and I had been on the same side of many fights, and we had worked together on the issue that is most urgent to me - comprehensive immigration reform.

We, as a country, have not seen a significant change in immigration policy in nearly two decades, even though all Americans agree that current immigration policy is outdated and malfunctioning.

I want very much to see some sort of compromise reached in the area of immigration... so that we could move on to other issues.

To be concerned about immigration and the economy is not racist, but I do think there is a virus of racism that runs through Ukip.

This is something that I witnessed out on the campaign trail for three years, which is that there is a total disconnect between the rhetoric regarding immigration and the reality. And I'm speaking as a border state.

Conscientious people like structure, so for them, a solution to immigration should be orderly, and a wall embodied that.

I began teaching in New York because I needed to stay in the United States and didn't have my immigration papers in order, so working for a university was a way of resolving the issue.

The Center for Immigration Studies found that illegal immigrants cost the United States taxpayer about $10.4 billion a year. A large part of that expense stems from the babies born each year to illegal immigrants.

We do not need an immigration policy that displaces American workers or American students and drives up costs in education.

We also need to strengthen the security of our borders and ports and strictly control immigration.

How can we possibly say the root of the Canadian approach to citizenship and immigration comes from Europe or the United States? I mean, we just don't do the same things. What I've said, very simply, is that unlike other colonies, for the first 250 years approximately, indigenous people were either the dominant force or an equal force.

Our immigration system is not broken. We don't need, and Congress shouldn't enact, amnesty.

Beyond budget fights, the Obama second-term agenda was supposed to be about passing comprehensive immigration reform.

Immigration is the sincerest form of flattery.

On immigration, Trump needs an articulate policy that aims to secure the border and keep out illegals while letting in skilled legal workers.

But then I came to the conclusion that no, while there may be an immigration problem, it isn't really a serious problem. The really serious problem is assimilation.

Because the worst of all worlds is when you pretend like you have an immigration policy, you make coming into the United States without our permission illegal, and then you actually don't enforce it.

In the past, I have been an immigration reformer, not a restrictionist.

One of the reasons why Canadians are generally positively inclined towards immigration is we've seen over decades, over generations, that it works.