National News

Coast Guard: Tow Boat Collision On Mississippi Causes Oil Spill

Updated at 3:45 p.m. ET

The U.S. Coast Guard has shut down a section of the Mississippi River south of Paducah, Ky., after two tow boats collided, causing an oil spill of unknown size.

In a statement, the Coast Guard said that the collision occurred Wednesday at 8:22 p.m. at Mile Marker 937, just north of Columbus, Ky.

Officials cut off water to San Quentin State Prison in California to squelch an outbreak of Legionnaires' disease.

Legionnaires' Outbreak Contained At Calif. Prison; New Cases In Illinois

The number of confirmed cases of Legionnaires' disease at California's San Quentin prison is holding steady at six, one of three outbreaks of Legionnaires' around the country that have sickened dozens and killed 20.

Another 95 San Quentin inmates are under observation because of respiratory illness, state officials said, but they have not been diagnosed with Legionnaires' disease. The inmates are being treated at San Quentin's medical unit.

BEFORE: In this photo provided by the RSPCA/Australian Capital Territory, Chris the sheep is prepared to be shorn in Canberra.

Woolly Mammoth: Shearer Saves Hugely Overgrown Sheep

Among the kangaroos and kookaburras, another creature trundled through the Australian bush.

Hooves barely visible, eyes mostly covered, the animal was the size of a refrigerator, the color of dirty snow.

A concerned hiker spotted the furry specimen days ago and raised the alarm. It was a matter of life and death — and this sheep needed a haircut.

Republican presidential candidate Donald Trump holds a signed pledge during a news conference in Trump Tower, Thursday, Sept. 3, 2015 in New York.

Trump: I'm 'Totally Pledging' My Allegiance To The Republican Party

Updated at 2:20 p.m. ET following Trump's press conference

Donald Trump is "totally pledging" his allegiance to the GOP and promising not to mount a potentially damaging third-party bid for president.

The billionaire businessman said Thursday he had signed the Republican National Committee's "Loyalty Pledge," which says he will support the eventual nominee and not run as an independent or on another party line.

"I will be totally pledging my allegiance to the Republican Party and the conservative principles for which it stands," said Trump.

President Obama got more than he bargained for Wednesday during a stop in Dillingham, Alaska.

Obama's Fish Tale: Spawned On By A Salmon

It was supposed to be a routine photo op.

During a historic trip to Alaska intended to call attention to climate change, President Obama got a bit of a surprise while at a fishing village at Kanakanak Beach. He was holding up a caught fish for the cameras when the salmon spawned on his shoes.

Ainissa Ramirez

This Teacher Wants To Excite Your Inner Scientist

Imagine a space shuttle speeding toward earth at 17,500 miles per hour, the friction outside heating the vessel up to more than 3,000 degrees Fahrenheit as it enters the atmosphere.

Those kind of temperatures normally melt metal. So what protects NASA's space shuttles?

That's just the kind of question award-winning scientist Ainissa Ramirez can't wait to answer. In fact, she's done it in this YouTube video. Hint: it involves sand.

A woman carrying a child stands outside a train with migrants that was stopped in Bicske, Hungary, on Thursday.

Migrants Refuse To Leave Train At Hungarian Refugee Camp

Updated at 3:35 p.m. ET

Thousands of migrants flooded into a train station in the Hungarian capital today after police lifted a two-day blockade, but some who boarded a train they thought was going to Germany ended up instead at a refugee camp just miles from Budapest.

Seminole cowboys marking and branding a calf in the corral during round-up, Brighton Reservation, Florida in 1950.

The 'Indian Cowboys' Of Florida

Florida Cowboys Week: Part Two

The state of Florida has a rich and diverse tradition of cattle ranching. Recently we explored the black cowboys of Florida. There are other distinctive elements to the state's past as well.

"Indian cowboys", for instance.

New England Patriots' Tom Brady warms up before a preseason game against the Carolina Panthers on Aug. 28.

Judge Throws Out Tom Brady's 4-Game Suspension Over 'Deflategate'

A federal judge has thrown out Tom Brady's four-game suspension over his role in "deflate-gate."

The suspension was handed down by NFL Commissioner Roger Goodell after attorney Ted Wells found that employees of the New England Patriots deflated footballs to make them easier to grip. Goodell said Brady likely knew about the scheme.

Brady appealed Goodell's decision in federal court and, today, he prevailed.

Rep. Elijah Cummings (second from right), the ranking member of the House Select Committee on Benghazi, said it's "certainly understandable" that Bryan Pagliano would be advised not to appear before the committee.

Former Clinton Aide Who Built Private Email Server Pleads The 5th

A former aide to Hillary Clinton said he will invoke his Fifth Amendment right to remain silent and not answer questions from Congress.

The aide, Bryan Pagliano, helped set up Clinton's private email server. Clinton has faced months of scrutiny for using her home server and a private email address to conduct State Department business.

The Select Committee on Benghazi had asked Pagliano, a former State Department employee, to field questions next week. His lawyer has declined, sending a letter to Congress citing the negative political environment.

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