(CNN) - Barack Obama’s fresh edge in new CNN/Time/Opinion Research Corporation polls released Wednesday are resulting in gains on the CNN Electoral Map. Minnesota, and its 10 electoral votes, from toss up to lean Obama. Missouri, with 11 electoral votes up for grabs, is shifting from lean McCain to toss up. With those moves, CNN estimates that if the presidential election were held today, Obama would win states that total 250 electoral votes and John McCain states totaling 189 electoral votes, with 99 electoral votes still up for grabs. Two-hundred and seventy electoral votes are needed to win the White House. Obama has a 61 electoral vote advantage over McCain, up from a 40 point lead the previous CNN Electoral Map.
In Minnesota, where the Republican convention was held a month ago, 54 percent of those questioned are backing Obama, and 43 percent support McCain — a major jump over the 2 point advantage Obama held over McCain in last month’s poll.
And the Illinois senator appears to erased McCain’s edge in Missouri — site of Thursday’s VP debate - where 49 percent of those polled are backing Obama and 48 percent supporting McCain. One month ago, Obama was down 5 points to McCain in the last poll. The only other new poll in Missouri, a Research 2000 survey, indicates McCain ahead by one point.
“At this point, the state polls are starting to reflect the same movement we’ve seen in the national polls over the last couple of weeks,” said CNN Senior Political Researcher Alan Silverleib. “Obama has been on an upward swing ever since the meltdown on Wall Street. The economic crisis is reinforcing the country’s desire for change, which is in turn helping the Democrats. If the current trends hold and McCain loses traditional red states like Florida and Virginia, it is hard to see how he can get to 270 electoral votes on Election Day.”
The CNN Electoral Map takes into account a number of factors, including the most recent state polls, voting trends, and campaign ad spending and events in the particular states.
The CNN/Time Magazine/Opinion Research Corporation polls were conducted September 28-30, with 940 registered voters and 770 likely votes in Florida, 929 registered voters and 849 likely voters in Minnesota, 951 registered voters and 744 likely voters in Missouri, 924 registered voters and 684 likely voters in Nevada, and 925 registered voters and 684 likely voters in Virginia all questioned by telephone. The survey's sampling error is plus or minus 3.5 percentage points in Florida, Minnesota and Missouri, and 4 percentage points in Nevada and Virginia.