(Washington) A new poll shows that among LGBT registered voters Democrat Barack Obama has a clear lead – with 68 percent favoring the Illinois Senator.

Ten percent of those surveyed support McCain, while three percent favor Ralph Nader and one percent supports Bob Barr. Three percent chose “other.” Fifteen percent of all LGBT voters still are not sure which candidate to support.

The Harris Poll was conducted online within the United States between August 1-7 among 2,834 adults aged 18 and over, of whom 178, or nearly 6.3 prercent, self-identified as gay, lesbian, bisexual or transgender.

Among all registered U.S. voters, Obama retains an eight point lead over Senator John McCain in the latest Harris Poll, virtually unchanged since the nine point lead he enjoyed in early July.

In many previous elections, Harris said in a media statement, Republican candidates have done slightly better among registered voters than among all adults, reflecting the fact that they are somewhat more likely than Democrats to register to vote.

“The fact that there is no such difference in this poll may reflect the fact that many new voters registered to vote in the Democratic primary elections,” the pollsters said.

Obama’s lead is critically dependent on his 33 point lead among Echo Boomers – people under 32 – but they are usually are the least likely generation to actually vote. If they do not vote very heavily in November this would hurt Obama’s chances, the pollsters said.

McCain leads among “Matures,” those over 62, by nine points, the generation that is usually the most likely to vote.

The new poll also shows there currently is no gender gap in this election. Obama’s lead is almost the same among men (+8 points) and women (+10 points).

In addition, Obama currently wins virtually all the African-American vote (+91) and most of the crucial Hispanic vote (+25), but loses the white vote by eight points. In the past, whites were more likely to vote than blacks or Hispanics.

While neither Obama nor McCain supports same-sex marriage, Obama favors repeal of federal legislation barring the government from recognizing gay unions and supports civil unions.

Both candidates oppose attempts to amend the U.S. Constitution to bar same-sex marriage, although McCain supports state bans.

Obama also supports legislation giving federal domestic partner benefits and the repeal of Don’t Ask, Don’t Tell – the ban on gays serving openly in the military.