The nation's best Museum of Contemporary Art has spent down its endowment to meet operating expenses. That's led to an investigation by the California State Attorney General. The LA County Museum of Art offered a merger, but today MOCA's trustees declined. They accepted a deal from MOCA’s founding chairman, philanthropist Eli Broad. He will match the contributions of others up to $15 million and provide another $3 million a year for five years to fund exhibitions.