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        <TotalAmt>44122034</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <TotalAmt>0</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <CurrentTaxYearMinus4YearsAmt>6002517</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5492667</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5814837</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2232096</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>19542117</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>6002517</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5492667</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>5814837</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2232096</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>19542117</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>24579917</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>373809</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>255254</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>214732</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>54683</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>27816</CurrentTaxYearAmt>
        <TotalAmt>926294</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>373809</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>255254</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>214732</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>54683</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>27816</CurrentTaxYearAmt>
        <TotalAmt>926294</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>14807960</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>12872198</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>13488857</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3838998</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>40315</CurrentTaxYearAmt>
        <TotalAmt>45048328</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.54560</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.54460</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.02060</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.02060</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleN documentId="RetDoc1043200001">
      <DispositionOfAssetsDetail>
        <AssetsDistriOrExpnssPaidDesc>Cash</AssetsDistriOrExpnssPaidDesc>
        <FairMarketValueOfAssetAmt>1203957</FairMarketValueOfAssetAmt>
        <MethodOfFMVDeterminationTxt>FY24 pay-down of AP and operational expenses.</MethodOfFMVDeterminationTxt>
        <BusinessName>
          <BusinessNameLine1Txt>Various</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>444 North Capitol St NW</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>200011594</ZIPCd>
        </USAddress>
      </DispositionOfAssetsDetail>
      <DirectorOfSuccessor2Ind>0</DirectorOfSuccessor2Ind>
      <EmployeeOfSuccessor2Ind>0</EmployeeOfSuccessor2Ind>
      <OwnerOfSuccessor2Ind>0</OwnerOfSuccessor2Ind>
      <ReceiveCompensation2Ind>0</ReceiveCompensation2Ind>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II- Sale, Exchange, Disposition, or Other Transfer of More Than 25% of</FormAndLineReferenceDesc>
        <ExplanationTxt>the Organization's Assets:SSO is in the process of winding down and eventually liquidating and dissolving the organization. In connection with the wind-down process, SSO entered into a lease assignment agreement and transferred all tenant subleases and certain assets and certain liabilities to their landlord effective September 2, 2022 and most day to day rental operations and administrative services programs ceased as of October 31, 2022. The organization has effectively ceased operations and maintains its remaining financial assets in an unrestricted fund, and is using the amounts in the unrestricted fund to pay existing and new obligations before final dissolution. The organization expects to dissolve finally no later than 2025.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleN>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Elective of members and their rights. Two directors are at-large directors. One of these directors is a representative of and is elected by eligible associations and the other at-large director is a representative of and is elected by eligible state offices.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The 990 is prepared by an outside accounting firm and is reviewed and signed by the Executive Director. A copy of the Form 990 is distributed to the Board of Directors prior to filing the return with the IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>SSO requires officers and directors to certify that they have reviewed the conflict of interest policy on an annual basis. An individual found to be in violation of the conflict of interest policy is subject to appropriate disciplinary and corrective action.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The policy on the process for determining compensation applies to the compensation of the Executive Director of SSO. The Executive Director of SSO reports to a Board of Directors. The SSO Board is responsible for annually evaluating the performance of the SSO Executive Director and sets the salary after reviewing data of comparable compensation for similarly qualified persons in a functionally comparable position at similarly situated organizations. The SSO Board contemporaneously communicates pay increase decisions and forwards appropriate documentation to human resources for payroll processing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Consultants and contractors: Program service expenses 0. Management and general expenses 73,474. Fundraising expenses 0. Total expenses 73,474.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>