SAN FRANCISCO (AP) — Former U.S. Rep. John Burton, a salty-tongued and unabashedly liberal San Francisco Democrat who stood up for the working class and nurtured countless political careers, including that of former U.S. House Speaker Nancy Pelosi, died Sunday. He was 92.

Burton died in San Francisco of natural causes, his family said in a statement.

°µÍø½ûÇø. All rights reserved.