Earlier this year, voters approved a measure allowing the Board of Supervisors to remove her from office amid a slew of misconduct charges.
MORE: San Mateo County Sheriff Corpus's legal team asks supervisors to suspend hearings on termination
San Mateo Co. sheriff asks supervisors to put her termination on hold
Corpus claimed it is illegal and violated her rights.
The judge ruled Wednesday the court is skeptical that Corpus will be able to prevail that the removal claim violates her federal rights.
TIMELINE: San Mateo County Sheriff Christina Corpus investigation
Corpus has denied all wrongdoing and refused to resign.
The county's removal hearing for her is still scheduled to begin Monday.
Sheriff Corpus and her legal team recently made one last push for the county supervisors to put their efforts to fire her on hold until a Civil Grand Jury can hear the case. I-Team reporter Dan Noyes spoke with the sheriff at her appearance before the Board of Supervisors on Tuesday.