Los Angeles County’s bold effort to improve voting leads to malfunctioning equipment, long lines and angry voters

A new voting system in Los Angeles County faced its first big test on Super Tuesday, the culmination of a decade of work on what was envisioned as a model for the nation. But technical glitches caused hours-long lines across the county — the largest in the country with more than 5 million registered voters — and harsh criticism from candidates, voters and political parties.