Majority of Michigan Democrats say President Barack Obama's endorsement of gay marriage makes them more likely to vote for him. However, Republicans and independents disapprove of the president's move.

The survey of 600 likely Michigan voters was conducted by public relations firm Lambert, Edwards & Associates and polling firm Denno Research, according to

Forty-one percent of respondents said they were less likely to vote for Obama because of his new stance, while 25 percent said they were more likely.

Of those supportive of the president on the issue, 57 percent identified as Democrats, 29 percent as Republicans and 17 percent as independents.

“The fact that only 17 percent of polled independent voters were supportive of the president's stance on gay marriage – and that 41 percent indicated that they were less likely to vote for him as a result – may be some cause for concern with this crucial group,” said Jeff Lambert, president and managing partner of Lambert, Edwards & Associates.

“President Obama needs to focus his electoral efforts on other issues – like job creation – if he wants to gain the independent vote in Michigan,” he added.

Participants were not asked whether they support or oppose marriage equality or to what extent the issue would influence their vote.

(Related: Obama likes Gay Pride.)