"This is not mean girls. This is not some episode of some television show. This is very serious." Secretary of State Marco Rubio says that Ukraine has accepted a ceasefire deal, and it is now up to Russia to accept it. Subscribe to Fox News! https://bit.ly/2vBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox News Channel Live: http://www.foxnewsgo.com/ FOX News Channel (FNC) is a 24-hour all-encompassing news service delivering breaking news as well as political and business