Complex sentence: Nevertheless, the MRP disagreed with the institutional ideas of De Gaulle, who advocated a strong executive power, autonomous towards Parliament, seeking the national interest while the particular interests would be represented by the parties in Parliament.
Split into simpler sentences: Nevertheless, the MRP disagreed with the institutional ideas of De Gaulle. This one advocated a strong executive power, autonomous towards Parliament, seeking the national interest while the particular interests would be represented by the parties in Parliament.