DFL U.S. Senate candidate Al Franken has moved into his first solid lead over incumbent Republican Norm Coleman, according to a new Star Tribune Minnesota Poll.
The survey, conducted Tuesday through Thursday by Princeton Survey Research Associates International among 1,084 likely Minnesota voters, shows Franken leading Coleman 43 to 34 percent. Independence Party candidate Dean Barkley is supported by 18 percent of respondents.
Franken's lead is outside the poll's margin of sampling error, plus or minus 3.7 points.
For Coleman, there is little good news in the poll. The number of voters who view him unfavorably continues to grow, the number who see him favorably is falling, and his job-approval rating has slipped to 38 percent — his lowest ever in the Minnesota Poll.
Coleman led Franken by four points in last month's Minnesota Poll.
The new results stand in contrast to the findings of a SurveyUSA poll, commissioned by KSTP-TV and also conducted this week, that shows Coleman with a 10-point lead over Franken, 43 to 33 percent.
Citing that poll, the Coleman campaign called the Minnesota Poll and its methodology "flawed," campaign spokesman Luke Friedrich said.
"Minnesotans should take the Star Tribune poll for what it's worth," Friedrich said.