Immigration 101

The U.S. immigration system is complex and can be difficult to understand. These resources provide key data points, historical information, and background on hot topics in immigration. Learn the basics about immigration.

Recent Features

Why Don’t Immigrants Apply for Citizenship?

There is no line available for undocumented immigrants and the “regular channels” do not include them.

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Fact Sheet
Temporary Protected Status: An Overview

This fact sheet provides an overview of how Temporary Protected Status designations are made, what benefits TPS confers, and how TPS beneficiaries apply for and regularly renew their status.

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How the United States Immigration System Works

U.S. immigration law is very complex. Here's basic information about how the U.S. legal immigration system is designed.

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All Immigration 101 Content

  • Blog

USCIS Fee Hikes Will Go Into Effect for These Applications

July 31, 2020

U.S. Citizenship and Immigration Services (USCIS) released an advance copy of a final rule on July 31 that will impose significant fee increases across many facets of the legal immigration system...

  • Blog

Trump’s Public Charge Rule Is Blocked Again Over Impact of COVID-19

July 30, 2020

A federal judge in New York has once again put the Trump administration’s “public charge” rule on hold, but only for the duration of the COVID-19 national emergency. This rule, which went into...

  • Blog

Canadian Court Rules US Is No Longer a ‘Safe Third Country’ for Asylum Applicants

July 23, 2020

A Canadian court has ruled that the United States is no longer a country to which the Canadian government could safely return asylum seekers who crossed the U.S-Canada land border.  This upends...

  • Blog

3 Things You Need to Know About Trump’s Unconstitutional Census Executive Order

July 22, 2020

President Trump issued an executive order on June 21 that laid out a plan to violate the U.S. Constitution by excluding undocumented immigrants from the 2020 Census. An accurate census count is...

  • Blog

USCIS Wastes Time and Money With Increased Vetting in Citizenship Processing

July 21, 2020

The Trump administration has justified major changes to citizenship processing to “safeguard” the U.S. immigration system from application fraud. Yet the increased vetting has not lowered the...

  • Blog

USCIS Upends the Lives of Immigrants by Refusing to Print Their Work Permits and Green Cards

July 15, 2020

Update: On August 3, 2020, a federal court in Ohio granted a temporary restraining order requiring USCIS to print a work permit within 7 days for all individuals who had been approved for one. The...

  • Blog

USCIS Holds Drive-Thru Naturalization Ceremonies to Work Through COVID-19 Backlog

July 13, 2020

U.S. Citizenship and Immigration Services (USCIS) expects, by the end of July, to have worked through nearly the entire backlog of naturalization oath ceremonies put on hold in response to the...

  • Blog

ICE Says International Students Must Take Classes in Person or Leave the Country

July 7, 2020

As the COVID-19 pandemic continues to surge across the United States, many universities have chosen to temporarily move to online-only classes to protect public health. However, new guidance from...

  • Blog

Cities with ‘Sanctuary’ Policies Save Lives from Domestic Violence

June 5, 2020

Many communities across the U.S. have adopted so-called “sanctuary policies” that are intended to ensure that we all live in safe neighborhoods. When these policies are in place, local police don’...

  • Blog

Supreme Court Safeguards Federal Court Review of Torture Protections

June 4, 2020

The U.S. Supreme Court found on Monday that federal courts have the authority to review certain claims from people who are seeking protection from torture. The case, Nasrallah v. Barr, is about...

  • Blog

Fear of Another 9/11 Continues to Drive US Immigration Policy 20 Years Later

September 14, 2021

The September 11th terrorist attacks not only led to the tragic deaths of 2,977 people, they fundamentally changed the nature of immigration law and policy in the United States. Since 9/11, the U....

  • Blog

The House Offers First Glimpse at Legalization for Millions of Immigrants Through Reconciliation

September 13, 2021

House Democrats began to mark up a budget reconciliation bill on September 10 that would provide a path to legal status for millions of undocumented immigrants in the United States. Although the...

  • Blog

California Law Would Prevent Transfers From Local Law Enforcement to ICE Custody

September 9, 2021

Proposed legislation in California that would further limit the state’s involvement in immigration detention has made progress toward becoming law. The VISION Act would prevent transfers to U.S....

  • Blog

President Biden is Overseeing a Historic Decline in Legal Immigration

August 31, 2021

The Biden administration predicts that it will fail to issue many of the legal permanent resident visas—also known as green cards—allotted this year for immigrants who have been sponsored by a U.S...

  • Blog

Felony Reentry Immigration Law Is Unconstitutional Due to Racist Origins, Judge Rules

August 27, 2021

The post Felony Reentry Immigration Law Is Unconstitutional Due to Racist Origins, Judge Rules...

  • Blog

Diversity Visa Lottery Winners Might Lose Chance to Come to the U.S. Due to Delays, Trump Policies

August 25, 2021

For the second year in a row, many winners of the diversity visa lottery face the prospect of losing their chance to come to the United States because the federal government can’t—or won’t—issue...

  • Fact Sheet

Prosecuting People for Coming to the United States

Publication Date: 
August 23, 2021
Over the last two decades, the federal government increasingly has utilized the criminal courts to punish people for immigration violations. This overview provides basic information about entry-...
  • Blog

People of Color Made Up All of the United States’ Population Growth in the Last 10 Years

August 18, 2021

Demographers have known for decades that the United States is well on its way to becoming a predominantly multi-racial and multi-ethnic society. New data from the 2020 Census reveals how rapidly...

  • Blog

America’s Ending in Afghanistan Must Ensure Safe Passage for Our Afghan Allies

August 18, 2021

Across centuries, Afghanistan has been a nation unconquerable. From the conquest of Alexander the Great to the United States military, insurgent forces have beat back the offensive from some of...

  • Blog

The New CBP One App May Put Immigrants and Travelers’ Privacy at Risk

August 5, 2021

It is unquestionable that technology creates efficiencies. But efficiency should not come at the total expense of privacy. A new app from U.S. Customs and Border Protection (CBP) toes that line...

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