Question: What incumbent was first elected in 2009?
SQL: SELECT "Incumbent" FROM "1-19753079-8" WHERE "First elected" = 2009.0;

Question: How many were first elected in California 7?
SQL: SELECT "First elected" FROM "1-19753079-8" WHERE "District" = 'California 7';

Question: What district did George Miller belong to?
SQL: SELECT "District" FROM "1-19753079-8" WHERE "Incumbent" = 'George Miller';