The Supreme Court almost always waits to get involved in a case until both a trial and appeals court have ruled in it.

Obama's tax policies caused thousands of Americans to renounce their citizenship and flee the country. But that trend has changed under Trump, despite media predictions to the contrary.

'Two major steps in particular would have a big impact on security at the U.S. southern border.'

The case does not concern the merits of the dispute over the citizenship question. Rather, the high court will decide which evidence the trial court may consider before issuing its ruling.

'We will not allow our generosity to be abused by those who would break our laws, defy our rules.'

"But where we obviously totally agree with the president is getting at the root issue here, which is unchecked illegal immigration.”

'I've always supported comprehensive immigration reform.'

'It was always told to me that you needed a constitutional amendment. Guess what? You don't.'

'Right now, we're finding ourselves in this space, in places like Miami and New York, where processing times are 21 months.'

'The caravan could create a major backlog at ports of entry.'