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WASHINGTON - Democratic presidential candidate Barack Obama has solidified his lead over rival John McCain, with 51 to 54 percent support in four key battleground states, a poll released yesterday showed.
Obama, pictured, also leads or ties McCain among white voters for the first time in Colorado, Michigan, Minnesota and Wisconsin, according to polling by Quinnipiac University conducted with the Wall Street Journal and washingtonpost.com.
"Obama's leads in these four battleground states are as large as they have been the entire campaign," said Peter Brown of the Quinnipiac University Polling Institute.
"Those margins may be insurmountable, barring a reversal that has never been seen before in the modern era in which polling monitors public opinion during the campaign."
The high marks for Obama are due to his economic plan and his performance in last week's town hall debate, the second of three ahead of the November 4 election, pollsters said.
The results showed Obama with 54 percent of the likely vote in Wisconsin compared to 37 percent for McCain, and 54 percent in Michigan compared to 38 percent for McCain.
Obama held a slimmer but still significant lead in Colorado (52 to 43 percent) and Minnesota (51-40 percent).
The results also showed Obama with an edge among white voters in all four states, with 48 percent of the likely white vote in Colorado compared to 47 percent for McCain, and 48 percent of whites in Michigan compared to 43 percent for McCain.
Obama had an even larger margin of support among whites in Wisconsin (52 to 39 percent) and Minnesota (49 to 43 percent).
The survey included more than 4000. - Sapa-AFP