user: Question: Which party is associated with a leader who began his tenure on June 13, 2007?
Columns: ['From', 'Until', 'Name', 'Party', 'Function']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['June 13, 2007', 'July 4, 2007', 'Didier Reynders', 'MR', 'informateur']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "From" = 'June 13, 2007';