The verdict comes in a series of legal proceedings that are expected to put the utility PacifiCorp on the hook for billions of dollars over its liability for the blazes.
The numbing cold is expected to ease in the coming days as water systems in Memphis and other Tennessee cities battle broken pipes that have caused boil-water notices.
Temperatures plunged below zero in parts of Tennessee, creating the largest power demand ever for the Tennessee Valley Authority. The icy blast stretches from Oregon to the Northeast.
The conditions closed rail links, schools and roads in some areas. Amtrak said no passenger trains will run between Seattle and Portland, Oregon, until Thursday because of a landslide.
With some narrow exceptions, abortion is banned in Republican-controlled Idaho but is legal in Oregon, and the state made it illegal to help minors get an abortion without their parents' consent.
A woman who escaped her kidnapper by punching her way out of a homemade cell in southern Oregon likely saved other women from a similar fate, authorities said.
In Oregon, wolverines are typically located in the Wallowa Mountains in the northeast of the state. But the animal was seen near Portland this week.
A suspect in a violent kidnapping in Oregon died of a self-inflicted gunshot wound Tuesday night after being taken into custody following a standoff with law enforcement, a police spokesman said.
Authorities are looking for Benjamin Obadiah Foster, who they accuse of kidnapping and assaulting a woman in Oregon — years after he was charged with holding his then-girlfriend captive in Las Vegas.