Chelsea Clinton announced Thursday that she is pregnant with the first grandchild of former President Bill Clinton and former Secretary of State Hillary Rodham Clinton.

"Marc and I are very excited that we have our first child arriving later this year," said Chelsea Clinton, 34, referring to her investment banker husband, Marc Mezvinsky, 36, the son of Marjorie Margolies, who is running for Congress in Pennsylvania's 13th District, covering Northeast Philadelphia and part of Montgomery County.

Sitting with her mother in side-by-side armchairs on a stage at a New York event on empowering women, Clinton broke the news with a wide smile. - Reuters