NEW YORK--(BUSINESS WIRE)--Western Asset Municipal High Income Fund Inc. (NYSE:MHF) announces its portfolio composition as of June 30, 2015. Investment Objective: The Fund seeks high current income exempt from Federal income taxes. Portfolio Composition*:   Asset Allocation Municipal   98.3% Variable Rate Demand Notes 1.6%   Top Ten Municipal Sectors Industrial Revenue 29.1% Health Care 15.2% Transportation 15.1% Education 10.2% Water & Sewer 7.7% Special Tax Obligation 7.2% Lease Backed 4.