A new poll of the Massachusetts Senate race shows Republican Scott Brown opening up a six-point lead over Democratic challenger Elizabeth Warren. Forty-nine percent of respondents support Brown, the incumbent running for reelection, while 43 percent support Warren. Nine percent are undecided.

The poll also found that independent voters in Massachusetts may be splitting their tickets between the parties in November, with 52 percent supporting Barack Obama in the presidential race and only 41 percent supporting MItt Romney. Romney was governor of Massachusetts from 2003 to 2007.