Julián Castro skewered the immigration provision during the first Democratic debate.
AP Photo/Wilfredo Lee
The 1929 immigration measure has become a focal point due to Trump’s crackdown on undocumented people, including families.
The U.S.-Mexico border, between San Diego and Calexico, California.
As part of a new 'metering' policy, US officials are turning asylum seekers away at ports of entry along the southern border. Thousands wait, straining the resources of Mexican border towns.
These are the five options for Brexit: Theresa May's withdrawal agreement, staying in the customs union, staying in the single market, the so-called Common Market 2.0 idea or a no-deal Brexit.
Nixon’s Operation Intercept in 1969 led to massive traffic jams.
Both presidents brought border traffic and trade to a standstill in hopes of changing Mexican policy in the drug war. And both failed to achieve their goals.
Central American migrants crossing Suchiate River on makeshift boats.
(Iván Francisco Porraz)
As migrant caravans become commonplace, life goes on along the frontera sur where tumultuous Central America and the poorest part of Mexico meet.
Clashes between opposition protesters and Venezuelan soldiers at the Venezuela-Brazil border have killed an estimated 25 people.
AP Photo/Edmar Barros
Brazil's president has threatened military intervention in neighboring Venezuela, called its leader a 'dictator' and sent troops to the border. But Brazil's military is quietly working to avoid war.
Wall construction along the U.S.-Mexico border in Sunland Park, New Mexico, in 2016.
As Congress and President Trump struggle to devise a coherent immigration policy along the US southern border, there are lessons from ancient history that could prove instructive.
Welcome to the US!
While the West fails to solve its border issues, countries in Asia and Africa have found a positive way forward.
Gerald Murnane has long been recognised as one of Australia’s finest writers.
This award to a long neglected writer shows that there is still a place in Australian life for works of art that challenge us to think.
Steve Parsons/PA Wire
Civil society groups continue to fight against the creeping demands of the UK's immigration system.
Father and son reunited after being detained in Texas.
A record number of immigrant children are being detained in the US. Here's what you need to know.
An asylum-seeker saying he’s from Eritrea is confronted by an RCMP officer as he crosses the border into Canada from the United States on Aug. 21 near Champlain, N.Y. Canadians have false beliefs about the so-called migration crisis, and politicians are capitalizing on it.
THE CANADIAN PRESS/Paul Chiasson
Canada's opposition Conservatives are borrowing from European populists in stoking fears about asylum-seekers and migrants. Here's why that's so dangerous.
Economist think so too.
AP Photo/Jose Luis Magana
The president says immigration is bad for the US economy. Economists disagree.
A Border Patrol agent in New Mexico.
REUTERS/Jose Luis Gonzalez
Undocumented entries across the border are at all-time lows. The people now arriving are not Mexican workers, but a smaller number of Central American families seeking to escape dire circumstances.
In this April 2018 photo, siblings from El Salvador huddle together on a soccer field in Mexico.
awaiting temporary transit visas that would allow them to continue to the U.S. border, where they hoped to request asylum.
(AP Photo/Felix Marquez)
Immigration turmoil in the U.S. means Canada must craft its own migration management plans -- to help Central Americans fleeing misery in their homelands, some of it with Canadian involvement.
Immigrant children separated from their parents who were detained at the U.S.-Mexico border arrive at a foster care facility in East Harlem on June 22.
Rainmaker Photo/MediaPunch /IPX
History shows that the US court system isn't sympathetic to undocumented migrants when it comes to parental rights.
Development is peaking in the high country between India and China.
Vinay Vaars/Wikimedia Commons
For decades, China and India have clashed over their disputed Himalayan border. This clash is also playing out via a development boom that threatens the health of one of the world's biggest river catchments.
A group of asylum seekers raise their hands as they approach RCMP officers while crossing the Canadian border at Champlain, N.Y., in 2017.
THE CANADIAN PRESS/Ryan Remiorz
A recent decision by the United States to deny asylum for victims of domestic abuse will have unintended consequences for Canada.
The old border was a source of anger, resentment and violence.
After Brexit, politicians hope that technology can help us avoid a hard border in Ireland.
A refugee family who was evacuated from Libya leave an UNHCR office in Niamey, on November 17, 2017, after being interviewed by protection officers of the French Office of Protection Refugees and Stateless Persons (OFPRA).
Displacing the EU’s border as far as possible from Europe: is this really a solution to mitigate the flow of migrants?