Complex sentence: In 2009, Senator Grassley received a 10 percent rating on the League of Conservation Voters (LCV) scorecard for his pro-environment votes on the issues of renewable energy and farm conservation programs.
Split into simpler sentences: In 2009, Senator Grassley received a 10 percent rating on the League of Conservation Voters (LCV) scorecard. The League approved of his votes on the issues of renewable energy and farm conservation programs.