Los Angeles heads to the polls today to decide on a range of local ballot measures, City Council races and local school boards. Without many national or statewide candidates on the ballot, turnout is expected to be low, but the races are still heated with big money involved. Among the more closely watched measures on todays ballot are LA's Measure L (allocating funds for the City's library system), Measure M (tax on medical marijuana collectives), and Measure O (tax on oil drilled in city limits).