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Voters headed to the polls for Tuesday's primary elections in Arizona and Florida and primary runoff elections in Oklahoma. It did not go well in Maricopa County (Phoenix) Arizona, where paper ballot optical-scan computer systems failed in at least 100 precincts. Then, Slate legal reporter Mark Joseph Stern explains Monday's extraordinary federal court ruling finding all of North Carolina's U.S. House districts are unlawful, unconstitutional partisan gerrymanders. The court may order new maps to be drawn up before this November's elections. If the matter is appealed to SCOTUS by the state (as it almost certainly will be) the Supremes could deadlock 4 to 4. If Justice Kennedy's seat has yet to be filled, the lower court ruling would stand. Stern also explains the extraordinary situation in West Virginia, where the Republican-majority state legislature has impeached all four sitting members of the state's Supreme Court -- timed to ensure that the state's Republican Gov. Jim Justice gets to choose all of the replacements, rather than WV voters as required in the state constitution. It serves as yet another example of Republicans blatantly hoping to pack the courts, but could prove to be a useful model for Democrats should they ever re-take control of the U.S. House, Senate and White House, after Senate Republicans stole Antonin Scalia's vacant US Supreme Court seat in 2017. Stern also offers his thoughts on whether Senate Democrats will be able to block -- or even stall -- the seating of Donald Trump's second nominee to the Court, Judge Brett Kavanaugh, whose Senate confirmation hearings are scheduled to begin next week. Finally, Desi Doyen has our latest 'Green News Report,' on the record rainfall from Hurricane Lane in Hawaii and the complicated climate legacy of the late Republican U.S. Senator and former GOP Presidential nominee, John McCain...