With more than 20 states holding presidential primaries and caucuses tomorrow, independent voters will be a key constituency in the states that allow them to participate, and according to a January Pew survey, strong majorities express positive views of John McCain (64%) and Barack Obama (62%). No other candidate in either party is viewed favorably by a majority of independent voters. Rudy Giuliani and Hillary Clinton receive the highest unfavorable ratings. Fully half of independent voters rate Giuliani negatively and about the same number has an unfavorable view of Clinton (48%). Read More

Russell Heimlich  is a former web developer at Pew Research Center.