With the March 5 primary election weeks away and ballots already in the mail, one-third of Silicon Valley voters still don\u2019t know\u00a0who they want to represent them in Congress. It\u2019s the first time in two decades\u00a0the region has had an open congressional race \u2014 and there\u2019s a long list of political heavyweights\u00a0hoping to replace retiring Rep. Anna Eshoo. A poll sponsored by San Jos\u00e9 Spotlight found former San Jose Mayor Sam Liccardo and Santa Clara County Supervisor Joe Simitian are the likely frontrunners advancing to a November runoff election. But with so many constituents undecided, it could be anyone\u2019s game.…<\/p>\n