Politics | Chelsea Clinton and Marc Mezvinsky Chelsea Clinton Pregnant Again She and Marc Mezvinsky are expecting another baby By Evann Gastaldo Posted Dec 21, 2015 3:10 PM CST Copied This photo provided by a Clinton spokesman, shows Chelsea Clinton, her husband Marc Mezvinsky, and their daughter Charlotte Clinton Mezvinsky on Sept. 27, 2014, at Lenox Hill Hospital in New York. (AP Photo/Office of President Clinton, Jon Davidson) Hillary Clinton's potential election to the presidency isn't the only thing the Clinton family has to look forward to next year: "Next summer, Charlotte is going to be a big sister!" Chelsea Clinton tweeted Monday, along with a picture of her daughter reading a copy of Big Sisters Are the Best. "Feeling very blessed & grateful this holiday season." Charlotte, Chelsea's daughter with husband Marc Mezvinsky, turned one year old in September. Read These Next Sheriff in Guthrie case says he may have a motive, and a warning. More pics have reportedly emerged from Guthrie home cameras. Have you ever seen an inflated kitten? Meet 'Puff Kitty.' The USPS' latest stamps go low, really low. Report an error