Policy contortions and unexpected reversals, such as her backtrack on the issue of drivers' licenses for undocumented immigrants, hurt her.

CNN: Analysis: Why Clinton's bid failed

Currently, Massachusetts, Connecticut, Iowa, Vermont, New Hampshire, New York and the District of Columbia issue marriage licenses to same-sex couples.

CNN: STORY HIGHLIGHTS

Nine states and the District of Columbia issue marriage licenses to same-sex couples, including three states -- Maryland, Washington, and Maine -- where voters approved it in ballot initiatives last year.

CNN: French lawmakers approve same-sex marriage bill

Under World Trade Organization rules, governments have the right to issue compulsory licenses to overcome barriers to access to cheaper versions of a patented drug without the consent of the company that invented the drug.

NPR: India Rejects Bayer Plea Against Cheap Cancer Drug