Sen. Mazie Hirono, D-Hawaii, will vote against Eric Garcetti to become the U.S. ambassador to India, she announced Wednesday.

Hirono broke away from her party and will vote against President Biden's nominee after saying she received "very credible" information regarding Garcetti that she says is disqualifying. Hirono did not detail what the information is.

Hirono told reporters that she had received "information that was given to me in confidence, but very credible, which is leading to my no vote," according to NBC.

The senator had previously said she was in favor of Garcetti's nomination. Her about-face comes as Republicans have roadblocked his nomination over a sexual harassment scandal in his previous office. Hirono gave no indication that her information related to that scandal, however.

HIRONO UNDER FIRE FOR REMARKS ON CONSTITUTION: ‘WHO THE HECK WOULD KNOW WHAT OUR FOUNDING FATHERS MEANT?'

Hirono

Sen. Mazie Hirono, D-Hawaii, says that she will vote against former Los Angeles Mayor Eric Garcetti to become the U.S. ambassador to India. (Tom Williams-Pool/Getty Images)

Los Angeles Mayor Eric Garcetti delivers State of the City Address from the under-construction Sixth Street Viaduct on Thursday, April 14, 2022, in Los Angeles. (Gary Coronado / Los Angeles Times via Getty Images)

Former Los Angeles Mayor Eric Garcetti has been embroiled in scandal after being nominated to serve as ambassador to India. (Gary Coronado / Los Angeles Times via Getty Images)

Garcetti has been awaiting confirmation for over 600 days.

Several Republicans have themselves broken ranks to support his nomination, arguing the post is too important to leave vacant for so long.

"It’s a national security imperative to immediately have an ambassador in place in India. We can't afford to wait any longer," Sen. Todd Young, R-Ind., told Fox News Digital last week.

SEXUAL HARASSMENT ALLEGATIONS NOT A DETERRENT TO WH NOMINATION OF FORMER LA MAYOR GARCETTI

Garcetti's role is one of many ambassadorships the Biden administration has struggled to fill.

President Joe Biden speaks in front of podium

President Biden's nominee for U.S. ambassador to India is embroiled in a scandal. (Chris Kleponis/CNP/Bloomberg via Getty Images)

CLICK HERE TO GET THE FOX NEWS APP

Garcetti's nomination will face a final vote in the Senate later Wednesday.