A new poll in Minnesota's southern congressional district shows voters are shifting their loyalties among candidates.

The changes might be good news for one Republican and bad news for another.

According to a new SurveyUSA poll, done for KSTP-TV, Democratic gubernatorial candidate Mark Dayton has the support of 41 42 percent, Republican Tom Emmer captures 40 41 percent and Independence Party's Tom Horner garners 13 percent.

The margin of error in the poll is 4.2 percent, which means the race is a tie in the swing district.

Dayton has lost ground in the key southern Minnesota district, according to the poll. The SurveyUSA poll from two weeks ago, gave Dayton a bigger lead. That poll gave Dayton a eight percentage point lead -- Dayton at 43%, Emmer at 35% and Horner at 13%.

At the same time, the statewide Democratic candidate lost ground, according to poll, the Democratic congressional candidate gained ground.

According to the poll, U.S. Rep. Tim Walz with 50 percent, Republican challenger Randy Demmer with 41 percent and third party candidate Steve Wilson 4 percent.

That's an upswing for Walz, who had been considered vulnerable when an earlier poll showed him with 47 percent and his Republican challenger with 42 percent and Wilson with 4 percent.

According to Tom Hauser, of KSTP, the station will release results of a statewide poll on Thursday.