FILE -- In this April 3, 2009, file photo, U.S. first lady Michelle Obama, during a visit to Baden-Baden, Germany. Michelle Obama brings her superstar glamor to Moscow this weekend as she accompanies her husband on his summit with the Russian president. But the American first lady, who has wowed publics in the U.S. and Europe with her easy elegance and charm, will perhaps face a bigger challenge in winning over a Russian public that has scant respect for women who grab the limelight from their powerful husbands. Russia still has trouble with the concept of an empowered woman behind the throne. (AP Photo/Michel Euler, file)