Fifty-one percent (51%) of Likely U.S. Voters say they would not personally be willing to vote for a Muslim president. The latest Rasmussen Reports national telephone survey finds that just 28% say they would be willing to support a Muslim in the White House. A sizable 20% are undecided. (To see survey question wording, click here.)

Fifty-two percent (52%) say most of their family, friends and co-workers also would not be willing to vote for a Muslim president. Only 15% say they would. Thirty-two percent (32%) are not sure.

By comparison, 78% said they could vote for a black president after Barack Obama clinched enough delegates to be the Democratic presidential nominee in 2008.

Republicans are more than twice as likely as Democrats – 73% to 35% – to say they would not personally vote for a Muslim to be U.S. president. A plurality (48%) of voters not affiliated with either major party agrees.