Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1714 ( "Source" text, "Dates administered" text, "Democrat: Christine Gregoire" text, "Republican: Dino Rossi" text, "Lead Margin" text )

### Question ###
How many polls show a result where democrat Christine Gregoire was polling at 50% and had a lead margin of 2?

### Accurate SQL ###

SELECT COUNT("Source") FROM table_1714 WHERE "Democrat: Christine Gregoire" = '50%' AND "Lead Margin" = '2'