Laphonza Butler sworn in as California senator in historic first

Sen. Laphonza Butler (D-Calif.) was sworn into office on Tuesday, becoming the first Black lesbian to openly serve in the U.S. Senate.

Driving the news: Vice President Kamala Harris, the first Black woman to represent California in the Senate, administered the oath of office.

• California Gov. Gavin Newsom appointed the former Emily's List president to replace longtime Sen. Dianne Feinstein.
• Butler resigned from her position at Emily's List on Tuesday prior to the ceremony, Sara Spain, a spokesperson for the organization, told Axios.

Between the lines: After Harris was elected to the White House, there were no Black women in the Senate, until Tuesday.

• "I'm sure she will do an excellent job in filling the seat for the time being," Harris said on Tuesday.
• "I know that our old colleague is looking down at this moment with pride," added Senate Majority Leader Chuck Schumer while welcoming Butler.

What we're watching: Butler said she is unsure if she will join a crowded field of Democrats running for the Senate seat in November 2024, per the Los Angeles Times.

Go deeper: What to know about Laphonza Butler, Emily's List head replacing Sen. Feinstein

Editor's note: This story has been updated with additional details.