The daughter of Republican presidential hopeful Rudy Giuliani signaled she was supporting Democrat Barack Obama, then backed off when faced with questions.

On her Facebook profile, 17-year-old Caroline Giuliani listed herself as a member of Obama’s Facebook group, “Barack Obama (One Million Strong for Barack).” She left the group Monday morning after the online magazine Slate sent an inquiry, and later in the day a spokeswoman said she did not intend to comment on the 2008 race.