At the end of this Karl Rove article about the failure of the Democrat-controlled Congress to tackle any meaningful issues over the past year is a paragraph that reminds us how narrow their margin of victory was:
The Democratic victory in 2006 was narrow. They won the House by 85,961 votes out of over 80 million cast and the Senate by a mere 3,562 out of over 62 million cast. A party that wins control by that narrow margin can quickly see its fortunes reversed when it fails to act responsibly, fails to fulfill its promises, and fails to lead.
Unfortunately the Republicans haven't exactly shined recently either.