U.S. District Judge Susan Bolton's decision Wednesday to block key provisions of Arizona's controversial immigration-enforcement law throws more turmoil into an already tumultuous legal and political controversy.

U.S. District Judge Susan Bolton on July 28 temporarily suspended major portions of Arizona's new immigration law. Here's a breakdown of the provisions of S1070 that are blocked, and which parts will take effect July 29.

Opponents of S1070 are viewing a federal judge's injunction as a death knell for the state's strict illegal immigration law.

A federal judge halted major parts of Arizona's immigration law, but Thursday, the day the entire law was to go into effect, may still bring civil disobedience and other drama.

A judge's ruling Wednesday putting on hold key parts of Arizona's new immigration law will head to the 9th U.S. Circuit Court of Appeals, but legal experts said there are other options to settle the dispute with the federal government.

What was intended to be a protest outside the Capitol against the implementation of S1070 turned out to be a celebration after U.S. District Court Judge Susan Bolton halted key elements of Arizona's immigration law.

Without the benefit of their state's strict new immigration law, officers from a single Arizona county helped deport more than 26,000 immigrants from the U.S. through a federal-local partnership program that has been roundly criticized as fraught with problems.

Arizona lawmakers this year proposed more than a dozen bills attempting to expand rights to carry and use guns and knives.

Today is the day gun-rights advocates have had in their sights for a long time.

The next Arizona Corporation Commission will determine policies that impact the daily lives of Arizonans perhaps more than most well-known elected offices in the state. Established by the Arizona Constitution, the commission regulates public utilities, corporate filings and securities, and railroad and pipeline safety.

Residents across the Valley who support Arizona's new immigration law said Wednesday that they were disappointed and frustrated by a judge's order temporarily blocking parts of the measure from taking effect today.

As one voracious non-native fish bears down on the Great Lakes, notorious mussels are spreading across the West. Frustrated state officials say it’s time for the federal government to play a bigger role in stopping the spread of invasive species.

The decision by U.S. District Judge Susan R. Bolton to block the enforcement of several provisions of a controversial Arizona immigration law is a good first step toward reversing a discriminatory measure that should never have been adopted.

The federal judge who ruled on Arizona's tragic, noxious new immigration law on Wednesday did not stop all of it from taking effect Thursday, but she preliminarily halted the worst of it.

A judge's ruling blocking major portions of Arizona's immigration law strengthened the Obama administration's hand in a battle over states rights that appears destined for the Supreme Court.

PHOENIX — A federal judge on Wednesday blocked the most controversial parts of Arizona's immigration enforcement law from going into effect, a ruling that at least temporarily squashed a state policy that had inflamed the national debate over immigration.

TUCSON — Dr. Bruce Parks unzips a white body bag on a steel gurney and gingerly lifts out a human skull and mandible, turning them over in his hands and examining the few teeth still in their sockets.

A federal judge in Arizona on Wednesday broadly vindicated the Obama administration's high-stakes move to challenge that state's tough immigration law and to assert the primary authority of the federal government over state lawmakers in immigration matters.

Utah is not the only state where lawmakers are attempting to address illegal immigration — which is traditionally a federal issue handled by Congress.

U.S. and Mexican border governors will gather in New Mexico in late September, but Gov. Bill Richardson said Wednesday that it's not a protest over the event's cancellation in Arizona because of that state's immigration enforcement law.

A federal judge's decision to delay implementation of parts of Arizona's controversial immigration-enforcement law Wednesday will prolong the debate and make it more heated, say Delaware residents close to the issue.