SNOW IN THE FORECAST: A new, fast-moving clipper system is set to sweep across parts of the U.S., putting 100 million Americans in the crosshairs of chilling winds and snow. Winter storm warnings and lake effect snow warnings are in effect in western Michigan, western Pennsylvania and western New York, where up to 1 foot of snow could fall over the next few days. ABC News' Trevor Ault is in Watertown, New York with the latest. #snow #weather #storm #forecast #news #abcnews

Sen. Mitt Romney delivers farewell address on the Senate floor, saying he leaves “with the recognition that I did not achieve everything I’d hoped.” “Among other things, the scourge of partisan politics has frustrated repeated efforts to stabilize our national debt.” #news #politics #MittRomney

A Pennsylvania grandmother who went missing while looking for her cat is believed to have fallen into a deep sinkhole, authorities said Tuesday. Elizabeth Pollard was reported missing by a family member shortly before 1 a.m. Tuesday, according to state troopers. The sinkhole is believed to be tied to historic mining in an abandoned underground coal mine that was last operated in 1952. #news #abcnews #sinkhole #pennsylvania

A truck driver escaped just in the nick of time before a train plowed into his tractor-trailer Monday in Erie, Pennsylvania. #news #abcnews #train #truck #pennsylvania

Demonstrators clashed with police outside of South Korea's parliament after the president declared an "emergency martial law." South Korean President Yoon Suk Yeol said the measure was necessary due to the actions of the country's opposition, which he accused of controlling parliament, sympathizing with North Korea and paralyzing the government. South Korea's National Assembly later voted to demand the president lift the martial law declaration. #southkorea #protest #martiallaw #news #abcnews