Primary races to watch in Nevada, South Carolina, Maine
CBSN
Primaries in different parts of the country on Tuesday could exert some influence on Republicans' chances at gaining back ground from Democrats in November and help decide whether an often unpredictable House Republican who has upset members of her own party will make it to the general election. Here are a few races to watch:
Republicans will pick their Senate nominee to try and defeat Democratic incumbent Sen. Jacky Rosen this fall.

As the Trump administration continues to prepare military options for strikes in Iran, U.S. allies in the Mideast, including Turkey, Oman and Qatar, are attempting to head off that possibility by brokering diplomatic talks, multiple regional officials told CBS News. Camilla Schick and Eleanor Watson contributed to this report.

Another winter storm may be headed toward the East Coast of the United States this weekend, on the heels of a powerful and deadly system that blanketed huge swaths of the country in snow and ice. The effects of that original storm have lingered for many areas in its path, and will likely remain as repeated bouts of Arctic air plunge downward from Canada and drive temperatures below freezing. Nikki Nolan contributed to this report. In:











