This NPR News Now episode covers a deadly explosion at a Canadian military base in Alberta, which Prime Minister Mark Carney called a peacetime tragedy. It also examines President Trump's endorsement of Israeli Prime Minister Benjamin Netanyahu ahead of critical elections, amid allegations of security failures. The broadcast highlights shifting campaign finance trends in US midterms, where Democratic candidates are out-raising their Republican opponents, and reports on a massive Russian strike on Ukraine. Finally, the segment includes voter registration deadlines for key states and a weeken…