Frank Lautenberg has decided not to run for reelection.

Longtime Sen. Frank Lautenberg will not seek re-election in 2014.

The senior senator from New Jersey, the oldest current senator, he is reportedly the last World War II veteran serving in the Senate.

Lautenberg plans to announce his decision tomorrow in his hometown of Patterson.

“This is not the end of anything, but rather the beginning of a two-year mission to pass new gun safety laws, protect children from toxic chemicals, and create more opportunities for working families in New Jersey,” Lautenberg said on Thursday.  “While I may not be seeking re-election, there is plenty of work to do before the end of this term and I'm going to keep fighting as hard as ever for the people of New Jersey in the U.S. Senate.”

Lautenberg, 89, served in the Senate from 1982 until 2001, and returned to the Senate in 2003. He returned after retirement to replace Bob Torricelli, who served a single term and dropped out of the race in 2002 after a campaign financing scandal.

Lautenberg’s office cited his work on gun control and highway safety as among his top legislative accomplishments.