A new NPR poll finds Republicans catching Democrats in a generic congressional ballot test.
"Asked whether they would support a Democrat or a Republican for Congress in 2010 if the election were held today, 42% said they would choose a Democrat and 43% a Republican, a difference well within the poll's margin of error (plus or minus 3.4 percentage points for each number in each question)."
For several years, Democrats have held wide leads on such questions.