Former President Bill Clinton praised Lansing Mayor Virg Bernero as a top urban leader during a Sunday campaign appearance in Detroit, but his speech to mostly committed Democrats seemed unlikely to make a difference in a race where independents appear to favor Bernero’s opponent. Bernero, mayor of Lansing the past five years, has been trailing Republican businessman Rick Snyder among independents and Republican voters in polls leading up to the Nov. 2 election. Clinton told about 500 people at Detroit’s Renaissance High School that Bernero was the only candidate with an economic plan to turn around Michigan’s battered economy, and...