Public Policy Polling released a new Colorado poll (pdf) this weekend showing Senator Barack Obama with a ten-point lead over John McCain:

Obama leads John McCain 52-42, up from a seven point advantage in a PPP Colorado survey three weeks ago. With only 6% of voters undecided and just 6% of those with a current preference open to changing their minds McCain is basically in a situation right now where he will need to take every undecided voter and also every Obama supporter willing to consider changing their mind to have any chance at winning the state.

PPP says the Latino vote has propelled Obama to his surge, and similar trends are seen in New Mexcio and Nevada:

Most of Obama’s gains over the last three weeks can be traced to the Hispanic vote. Where his lead among those voters was previously 57-36, he has now upped it to 71-21. The breakdown of white voters is exactly the same as it was previously, a 48-47 lead for Obama.

“The overwhelming support Barack Obama is receiving from Hispanic voters in Colorado, New Mexico, and Nevada is likely to flip that trio of states into the Democratic column after they all went for George W. Bush in 2004,” said Dean Debnam, President of Public Policy Polling. “Perhaps more significantly though, they could be the harbinger of a long term movement toward the Democrats in the Mountain West.”

Full poll results are attached at the above link. Also of interest: 49 percent of those polled said McCain’s choice of Governor Sarah Palin as his running mate made them less likely to vote for him.

The poll also has positive numbers for Representative Mark Udall in the Senate race against former Representative Bob Schaffer. Udall leads by 10 percent: 49 percent to 39 .