In Missouri the Republicans, with Trump's approval, created a new districting map that altered the balance of the State's seats in the House of Representatives from 6:2 in their favour to 7:1, and proposed using it for the midterms. The State Supreme Court, (Republican majority ), was asked to rule on this and unanimously rejected it and said the old map must be used until the new proposal could be put to a State-wide ballot.
The State's Secretary of State and Attorney General appealed this to the federal Supreme Court, which itself unanimously backed the State Court and rejected the appeal. The Secretary and AG then found a friendly fedreal Judge who gave them a new way to approach the State SC, but again the State SC ruled against them. The Secretary of State said he would again challenge the State SC ruling, however the Court ordered him to be held in Contempt of Court - he has now backed down and accepted their original decision.