By Evan Halper Los Angeles Times WASHINGTON — The war on drugs had erupted, apartheid was raging, Jesse Jackson would soon make the campus a staging ground for his inaugural presidential bid. Running for student office in 1982 at Howard University — the school that nurtured Thurgood Marshall, Toni Morrison and Stokely Carmichael — was no joke. Sen. Kamala Harris, D-Calif., has been known to break the