user: Question: Which state did Samuel Thatcher of the Federalist party represent?
Columns: ['Begin Date', 'Representative', 'Date of birth', 'House term', 'State served', 'Party', 'Age (years, days)']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['March 4, 1789', 'Roger Sherman', 'April 19, 1721', '1789-1791', 'Connecticut', 'Pro-Administration', '72years, 95days']
SQL:

assistant: SELECT "State served" FROM "Table" WHERE "Party" = 'Federalist' AND "Representative" = 'Samuel Thatcher';