The 2016 presidential contender is walking back talk of a northern border wall.
Bush said Trump's immigration proposals would be too costly and impractical.
His policy to end birthright citizenship goes against the 14th Amendment.
Bush and Donald Trump have been exchanging barbs over immigration.
The 14th Amendment's language is clear and so are the Supreme Court opinions interpreting it.
"I just think it’s a very complicated problem," Christie said.
Mexico said Trump's plan reflects "prejudice, racism or plain ignorance."
The GOP candidate is focusing on "three core principles."
Cruz and Sessions are probing the "nexus between terrorism and our immigration system."
The changing facts of immigration require an update.
We must pay attention to potential adverse geopolitical effects of the Greek economic crisis.
Hayek said on Wednesday she is concerned Donald Trump is resonating with voters.
“That is a legitimate issue for us to look at,” Scott Walker said.
In the way that schoolchildren taunt each other, GOP candidates recklessly throw around the phrase.
Democrats are condemning the term as a racial insult.
OPINION | The movement had been fading until Trump gave it a shot in the arm.
“Any change in birthright citizenship ... will take many, many years,” he said.
There are two ways a president could attempt to narrow the scope of the Citizenship Clause.
Gov. Scott Walker offered support for Donald Trump’s new immigration plan, comparing it favorably...
"I think he will take us all with him if we don’t watch it,” he said.
All levels of government play a role and it's time for them to talk.
States and cities should not get to choose which federal laws they obey.
Her comments do represent the thinking of many people pushing for increases in immigration.
Immigration reform is one of Bush's biggest liabilities with the conservative base.