Is Pete Buttigieg the best Democratic candidate to take on Trump? The columnists size up the South Bend mayor’s rise in Iowa and a new Times poll terrifying those who fear Trump’s re-election. Then: California is beset by catastrophic wildfires, growing income inequality and a decrease in overall livability. Are the state’s woes a leading indicator of America’s bleak future? For background reading on this episode, visit nytimes.com/theargument