The Hill News

Sen. Dianne Feinstein (D-Calif.) joined Twitter over the weekend.

Feinstein was one of the few remaining hold-outs to Twitter â€" more than three-fourths of Senate members are accessible through the microblogging service. As of Monday, she has sent four tweets from @SenFeinstein and quickly jumped to 376 followers.

Feinstein's fellow senator from California, Barbara Boxer (D), is already on Twitter as @SenatorBoxer. She is one of the 6 accounts Feinstein was already following on Monday, along with the California governor's office, Stanford University, the San Francisco Giants and 49ers and the White House.