The unexpected hospitalization of San Francisco Supervisor Jackie Fielder has ignited a flurry of speculation regarding the cause behind her sudden health crisis. Reports suggest that she may be stepping down after serving just over a year in her position.

According to Fielder’s office, she experienced an “acute personal health crisis” on Friday. The Post has confirmed that Fielder, known as one of the most progressive voices in the city’s political arena, informed city officials of her intention to take a leave of absence.

However, by Friday evening, Fielder surprised both residents and political insiders by announcing to San Francisco reporters her decision to resign. This unexpected move has the potential to enhance Mayor Daniel Lurie’s influence and power in the city.

Sasha Gaona, Fielder’s former campaign manager and current chief of staff, communicated to The Post via text message that Fielder has not yet formally resigned from her position.

“We hope the press will honor her need for privacy during this difficult time and allow her the necessary space to recover,” Gaona expressed.

Fielder, a Democratic Socialist with Latina and indigenous roots, has been notably absent from at least four board and committee meetings this month, as reported by the San Francisco Standard.

Before those absences, she was often publicly opposing the mayor on numerous issues, from Lurie giving out multi-million-dollar contracts to people with close ties to the anti-poverty nonprofit he founded to the mayor’s controversial zoning policies on housing.

Fielder has called for a hearing looking into whether Lurie’s administration gave preferential treatment to OpenGov in awarding a $5.9 million contract to streamline San Francisco’s permitting technology.

The mayor’s allies outside of City Hall launched an ad campaign attacking Fielder and other supervisors for opposing the mayor’s housing plan.

Lurie issued a statement Friday evening on social media wishing Fielder a “speedy recovery.”

“She is a dedicated advocate for her community,” Lurie wrote on X. “I am encouraging everyone to give her the time and space to get better so she can do that work fully, and I’m wishing her strength and all the best for her health.”

Rumors have swirled that Fielder could be the subject of an internal city investigation looking into leaked documents regarding a “sobering center,” a place for homeless people high on drugs to receive treatment without punishment but face arrest if they decide to leave.

A memo obtained by news website Mission Local shows the City Attorney’s Office warned elected officials that the mayor’s proposal for the South of Market area — located near the city’s downtown core — could violate state laws and presents a “very high legal risk.”

The plan passed on a 9-2 vote and Fielder was one of only two supervisors to oppose it.

The city attorney’s office launched an internal investigation in February to find out who leaked the memo to the media, and a source with knowledge of the situation said it almost certainly came from one of San Francisco’s 11 supervisors or an elected officials’ staffer.

However, the leak investigation is in its early stages and Fielder does not appear to have been pinpointed as a culprit.

“Our thoughts are with Supervisor Fielder,” said Jen Kwart, a spokesperson for City Attorney David Chiu. “We wish her a quick recovery and encourage her to take the time and space necessary to thoroughly consider any potential resignation.”

Aaron Peskin, a four-time city supervisor who was often seen as one of the most polarizing figures in San Francisco’s progressive wing of politics, called the job Fielder is doing “extremely stressful” and a “pressure-cooker environment.”

“This is a moment where people need to put politics aside and prioritize giving her the space to do what she needs to do,” Peskin said.

If she were to resign, Peskin noted, the mayor’s appointment would likely be a placeholder, as the city’s Mission District has historically had the most progressive voting bloc in the city.

Before running for supervisor in 2024, Fielder gained attention as a candidate in the 2020 state Senate race against Scott Wiener. She has aggressively pushed for publicly-owned banks to divest from fossil fuels and reinvest in local communities.

Fielder has frequently found herself outnumbered in political fights as a supervisor, as San Francisco voters have shifted to supporting more moderate candidates and policies in recent years.

She has publicly supported alternatives to incarceration, stronger police accountability measures, and reaffirmed San Francisco’s sanctuary city policies, speaking out against ICE enforcement actions and backing legal protections for undocumented residents.

Fielder’s has faced criticism for her opposition to the mayor’s upzoning efforts and market-rate housing expansions, instead pushing for expanded tenant protections, rent control enforcement, and large-scale public or social housing investments.

She is the chair of the city’s Government Audit & Oversight Committee, a chair for the Local Agency Formation Commission and a member of the San Francisco County Transportation Authority.

If Fielder does resign, Lurie would have the opportunity to make another appointment to the Board of Supervisors, before a special election is held. San Francisco’s last supervisor appointment blew up in the mayor’s face, as Lurie appointed Beya Alcaraz, an unvetted 29-year-old former pet store owner.

Alcaraz resigned just nine days into the job after it was uncovered that she’d abandoned her pet store with hundreds of dead mice, lost tens of thousands of dollars in the final years of operations and paid employees under the table.