Washington that fell hardest on new entrants to the insurance market.” Morrison’s other CO-OP case, by the same name, challenged the federal government’s underpayment of risk corridor payments under the ACA and resulted in a $56.7 million judgment for the CO-OP following the United States Supreme Court’s ruling in Maine Community Health Options v. United States. In 2019, Morrison and his co-counsel also obtained a $7 million settlement on behalf of 11,000 employees of five Montana hospitals for violations of ERISA in the handling of their health benefit plans. In 2021, Morrison recovered $2 million for a man wounded in the October 1, 2017 Las Vegas mass shooting. Health CO-OPs Morrison was the founding president of the National Alliance of State Health CO-OPs (NASHCO), which included all Consumer Operated and Oriented Plans authorized and funded under the Patient Protection and Affordable Care Act. He was also co-founder and vice-chair of the Montana Health CO-OP, one of the first CO-OPs to be approved for funding by the United States Department of Health and Human Services, and one of the last remaining. In 2012, Morrison supported federal low interest loans to CO-OPs and argued against Congressional plans to cut the loan funds from the federal budget. Morrison said the 24 existing CO-OPs would increase competition and innovation in the health insurance marketplace. In October 2013, he released a study showing that premiums were 8.4% lower in states that had a CO-OP than in states that did not. In February 2014, Morrison estimated that 300,000 Americans had signed up for CO-OPs to date despite early technical problems. In 2015 Morrison testified before the U.S. House Committee on Energy and Commerce Subcommittee on Oversight and Investigations about shutdowns of CO-OPs in various state healthcare exchanges; he said that the situation was the fault of both the Obama administration and Congress, but largely due to the decision of both to pay only 13 percent of the risk corridor payments required by the ACA. The Obama administration's decision to forbid CO-OPs from limiting the number of policies they sold while at the same time limiting their ability to raise money ruined their finances, and Congress' cutting loans available to them also harmed their financial viability. It was Morrison's fourth Congressional testimony. 2006 U.S. Senate election In 2006, Morrison was a candidate for the U.S. Senate in a contested Democratic primary with Jon Tester, the President of