Sen. Dianne Feinstein of California announced that she will seek reelection in 2018, silencing speculation that she meant to retire after holding the office for more than 25 years.
The announcement that Feinstein would run was first tweeted Monday by an unverified Twitter account affiliated with Feinstein.
"I am all in!" she wrote.
Feinstein, who was the mayor of San Francisco for a decade before her Senate career, has been among the most outspoken voices on issues like gun violence and torture during her long legislative tenure. "I'm all in!" the tweet said, a statement Feinstein's spokesperson confirmed as accurate.
Feinstein, who has served California in the Senate since 1992, will be 85 on Election Day next November.
Feinstein's reelection bid was quickly endorsed by fellow California Senator Kamala Harris.
The veteran Democrat had dodged questions about whether she would seek a fifth term, leaving her party in the nation's most populous state in limbo about whether to start grooming a possible replacement.
At least one liberal journalist, Markos Moulitsas, founder of the progressive Daily Kos and co-founder of Vox Media, reached out directly to De León, an outspoken opponent of President Donald Trump who is pushing a sanctuary state law in California, offering to work together to beat "the most pro-Trump Blue-state Dem in the country [Feinstein]".
Gun control has been a top priority for Feinstein since she entered Congress.
Should Feinstein win, she would be 91 by the end of her term in Congress. Adam B. Schiff, Eric Swalwell and Brad Sherman, were said to be preparing for a Senate campaign if Feinstein opted to retire.
Feinstein's California colleague, Sen.
Should Feinstein run again and is her age a concern?
Asked about a poll that half of California voters don't think she should run, she added: "Oh look".