Alexis Simendinger, RCP
Soothsayers may try to divine political meaning for President Obama in a Democrat's decisive win Tuesday in a special Arizona House election, but they'd be wrong, say pollsters and political experts.The race in Arizona's 8th Congressional District to complete the term of popular Gabby Giffords, who retired in January, offers few clues about how Obama could defeat Mitt Romney in a state that hasn't backed a Democrat for president since 1996.Democrat Ron Barber won handily in a district where there are more registered Republicans than Democrats and half the voters say they...