Looks like former Pennsylvania congresswoman Marjorie Margolies will be a grandma again.

Margolies' daughter-in-law Chelsea Clinton tweeted today that she is pregnant with her second child with husband Marc Mezvinsky. Clinton tweeted a pic of her 14 month old daughter Charlotte to announce the big news:

Margolies was in the House of Representatives from 1993 to 1995, where she repped Pennsylvania's 13th District. She later ran for Lieutenant Governor, and in 2014 ran again for the 13th District seat, losing to now-Congressman Brendan Boyle.

Clinton and Mezvinksy met as teenagers when Margolies attended to Renaissance Weekend in Hilton Head, S.C. in 1994. They officially started dating in 2005. At Clinton and Mezvinksy's 2010 wedding, Margolies walked her son down the aisle.