SAO PAULO—To say that Michel Temer faces huge challenges would be an understatement.
Brazil’s 75-year-old acting president must fight the Zika virus, which can cause birth defects and has ravaged thousands of families in poor northeastern states. He must rescue Latin America’s largest economy from its worst recession since the 1930s, most likely by making painful—and protest-invoking—cuts to the pension system and social welfare spending.
He must win back the trust of a populace that has come to believe virtually all politicians, including him, are lining their pockets with taxpayer money.