Obama's high-court pick is no 'stealth candidate.' She has made some 450 judicial decisions. What's more, she has not been shy about expressing her opinions publicly.
Voters approved Proposition 8 last year, which made gay marriages illegal. The court decides Tuesday if the measure was unconstitutional.
In nominating Sonia Sotomayor, the president cited both her judicial experience and her compelling personal story.
Courts have struck down many laws aimed at preventing sales to minors. Legal analysts see Supreme Court as unlikely to step in.