How New is Newsom?

After the 2018, midterms, Gavin Newsom beat out Republican opponent John Cox, unsurprisingly. Newsom, a progressive democrat, might be considered more liberal than current governer Jerry Brown, who Mercury News called the "voice of moderation in Sacramento and the adult in the state capitol." Of course, Newsom is more progressive on topics like income inequality and gun control, but how much different will he be then Jerry Brown? Newsom has known Brown since early childhood, and grew up watching him run the state. Will the Newsom era bring radical change to California politics, or will we see a Brown-esque style of governance?