Table: election_predictions_2008
Columns: district
incumbent
cook
rothenberg
cq_politics
crystal_ball

Question: Who is the incumbent of district pa-8?
SQL: SELECT "incumbent" FROM election_predictions_2008 WHERE "district" = 'PA-8'

Question: How many incumbents are in district la-1?
SQL: SELECT COUNT("incumbent") FROM election_predictions_2008 WHERE "district" = 'LA-1'