CREATE TABLE table_23282 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

When mark critz (d) 50.8% tim burns (r) 49.2% are the candidates what is the party?
SELECT "Party" FROM table_23282 WHERE "Candidates" = 'Mark Critz (D) 50.8% Tim Burns (R) 49.2%'
SELECT "Party" FROM "table_23282" WHERE "Candidates" = 'Mark Critz (D) 50.8% Tim Burns (R) 49.2%'