SPRINGFIELD — The vote for state Rep. Elizabeth “Lisa” Hernandez as the Democratic Party of Illinois’ first Latino chairwoman was unanimous and uneventful Saturday morning — the drama had occurred in the days prior in a power struggle of some of the state’s most prominent Democrats.Hernandez was backed Gov. J.B. Pritzker and House Speaker Emanuel “Chris” Welch. She served with Welch on a special investigating committee of House Speaker Michael Madigan in 2020, which chose to …