President Trump campaigns in Nebraska while Vice President Vance supports GOP candidates in Alaska. Brazil’s presidential election heads to a runoff as Flavio Bolsonaro narrowly leads incumbent Lula. Russian authorities downplay a plague outbreak in Siberia following a lab worker’s death. Markets react to OPEC’s steady oil production, while a condemned Tennessee prisoner remains hospitalized after a failed execution. Finally, scientists win the Nobel Prize for optogenetics breakthroughs.