CREATE TABLE table_37320 ("District" FLOAT, "Incumbent" TEXT, "2008 Status" TEXT, "Democratic" TEXT, "Republican" TEXT)

Which District has a 2008 Status of re-election, and a Democratic david price?
SELECT AVG("District") FROM table_37320 WHERE "2008 Status" = 're-election' AND "Democratic" = 'david price'
SELECT AVG("District") FROM "table_37320" WHERE "2008 Status" = 're-election' AND "Democratic" = 'david price'