In 2010, then-Secretary of State Hillary Clinton provoked outrage in Beijing when she pushed the South China Sea to the top of the regional and U.S. security agendas.
Now as an international court prepares to hand down a ruling that threatens China's sweeping claims in the vital waterway, Beijing is watching Clinton's presidential run with trepidation.
Combined with her tough line on human rights and role in leading President Barack Obama's Asia "rebalancing," Clinton is well-known in China — but not well liked.