Elena Kagan is the SC Justice in charge of the 9th Circuit.

It is ordered that the following allotment be made of The Chief Justice and the Associate Justices of this Court among the circuits, pursuant to Title 28, United States Code, Section 42 and that such allotment be entered of record, effective October 19, 2018.

For the District of Columbia Circuit - John G. Roberts, Jr., Chief Justice

For the First Circuit - Stephen Breyer, Associate Justice

(Maine, Massachusetts, New Hampshire, Puerto Rico, Rhode Island)

For the Second Circuit - Ruth Bader Ginsburg, Associate Justice(Connecticut, New York, Vermont)

For the Third Circuit - Samuel A. Alito, Jr., Associate Justice(Delaware, New Jersey, Pennsylvania, Virgin Island)

For the Fourth Circuit - John G. Roberts, Jr., Chief Justice(Maryland, North Carolina, South Carolina, West Virginia, Virginia)

For the Fifth Circuit - Samuel A. Alito, Jr., Associate Justice(Louisiana, Mississippi, Texas)

For the Sixth Circuit - Sonia Sotomayor, Associate Justice(Kentucky, Michigan, Ohio, Tennessee)

For the Seventh Circuit - Brett M. Kavanaugh, Associate Justice(Illinois, Indiana, Wisconsin)

For the Eighth Circuit - Neil M. Gorsuch, Associate Justice(Arkansas, Iowa, Minnesota, Missouri, Nebraska, North Dakota, South Dakota)

For the Ninth Circuit - Elena Kagan, Associate Justice(Alaska, Arizona, California, Guam, Hawaii, Idaho, Oregon, Montana, Nevada, Northern Mariana Islands, Washington)

For the Tenth Circuit - Sonia Sotomayor, Associate Justice(Colorado, Kansas, New Mexico, Oklahoma, Utah, Wyoming)

For the Eleventh Circuit - Clarence Thomas, Associate Justice(Alabama, Florida, Georgia)

For the Federal Circuit - John G. Roberts, Jr., Chief Justice.

https://www.supremecourt.gov/about/circuitAssignments.aspx