TRENTON, N.J. — Cory Booker, the mayor of Newark and perhaps New Jersey’s highest-profile Democrat, has ruled out a bid for governor next year and is interested in a run for Senate in 2014.
The decision, announced Thursday on Twitter, means Booker has decided against a possible campaign against Governor Chris Christie, a Republican. But depending on how things play out, he could find himself in a Democratic primary race against Senator Frank Lautenberg, who is 88 and declined to talk about his political future on Thursday.
Booker’s announcement alters the landscape for both races, and for politics in Newark, the state’s largest city, where his term runs through June 2014.
‘‘Let there be no doubt, I will complete my full second term as mayor,’’ Booker said in a statement posted on Facebook and linked to Twitter. ‘‘As for my political future, I will explore the possibility of running for the United States Senate in 2014.’’
But with nearly 23 months to go before that election, there is plenty of doubt about it — including whether Lautenberg intends to run and whether Booker would pursue the seat even if Lautenberg does, too.
Lautenberg’s spokesman, Caley Gray, said the senator is concentrating now on recovery from Hurricane Sandy and on gun control laws. ‘‘The last several months and weeks have been a painful time for New Jersey and America, and the senator is working on the tough issues we face,’’ Gray said. ‘‘This is not the time for political distractions and the senator will address politics next year.’’
In his statement, Booker praised Lautenberg’s record. In a three-minute video that accompanied his announcement, Booker said, ‘‘It will be a privilege, an honor, to continue his legacy of service.’’ But he did not say whether he would be willing to take on Lautenberg in a primary. Booker said he looked forward to consulting with Lautenberg and reached out to him Thursday morning, but it’s not clear whether the two talked.
US Representative Frank Pallone, also a Democrat, indicated his continued interest in a Senate seat on Wednesday.
Lautenberg, known as the lawmaker behind the ban on smoking on airplanes, served three terms in the Senate before retiring in 2001, but he returned to politics less than two years later, taking the ballot spot of scandal-plagued Senator Robert Torricelli. In 2008, Representative Rob Andrews took him on in a primary election, but Lautenberg won with the support of much of the state’s Democratic Party establishment.
It gets touchier as he ages in part because the governor gets to decide who will complete an unexpired Senate term. As long as Christie remains in office, it’s likely a Republican would replace Lautenberg should he not be able to continue serving.
While New Jersey voters have alternated between Republican and Democratic governors for decades, the state is solidly blue when it comes to the US Senate. The last time a Republican was elected to represent the state there was in 1972.
Booker also made a round of calls to Democratic county political chairs and Stephen Sweeney, the state Senate president and another Democrat said to be considering a run for governor or another office.
Many Democrats viewed Booker as having the best chance at unseating Christie. So far, just one prominent Democrat, state Senator Barbara Buono of Metuchen, has announced a gubernatorial candidacy. Now that Booker is out, the party will look for decisions from others, including Sweeney and state Senator Richard Codey.
On Thursday, Buono praised Booker’s work in Newark and made a play for support from Democrats who were waiting to see whether he might run for governor.
‘‘With the mayor’s announcement today — and having already earned the endorsement of the Middlesex County and Somerset County Democratic Parties,’’ she said, ‘‘I am asking Democrats across New Jersey to join our campaign for the Democratic nomination for governor.’’
Assemblyman John Wisniewski, chairman of the New Jersey Democratic State Committee who previously announced he would not run for governor next year, said he was disappointed that Booker isn’t seeking the nomination.
‘‘He’s an attractive candidate,’’ he said. ‘‘However, New Jersey Democrats have a number of talented, experienced individuals on our ‘bench’ who would make both excellent candidates and excellent governors.’’
Christie’s popularity is at an all-time high following his handling of Hurricane Sandy and its aftermath. In announcing his reelection bid last month, Christie said he was motivated, in part, by the chance to lead New Jersey through the post-storm recovery, which he said won’t be complete when his first term expires.
Booker and Christie historically have had a good working relationship.
A Stanford-educated Rhodes Scholar who grew up in suburban Harrington Park, N.J., Booker is the son of civil rights activists who were among the first black executives at IBM. He got his law degree from Yale Law School, then moved to one of Newark’s most notoriously violent housing projects.