Louisiana's congressional delegation got a lukewarm vote of confidence for 2009 by the League of Conservation Voters, an environmental group that's issued scorecards on Congress for 30 years.

In the scorecard, U.S. Sen. Mary Landrieu, D-La., got high marks while U.S. Sen. David Vitter, R-La., got a low score. In the House, U.S. Rep. Charlie Melancon, D-La., got the highest score while Republicans John Fleming and Steve Scalise got the lowest.

The group says the scores were based on 11 Senate and 13 House votes related to issues concerning energy, climate change, the use of public lands and water and wildlife conservation.