UTICA, New York – As the race for President passes the Independence Day holiday and heads toward the dog days of summer, Sen. Barack Obama holds a 44% to 38% lead over Sen. John McCain in the horserace contest, but also leads by a substantial margin in a state-by-state Electoral College tally, a new Zogby Interactive poll shows.

The extensive national poll of of 46,274 likely voters also shows Libertarian candidate and former Congressman Bob Barr wins 6% support, eating into McCain’s needed conservative base of support.

Neither Obama nor McCain breaks a 50% favorable rating. Obama is viewed as very or somewhat favorable by 49.7%. For McCain, that number is 43.2%.

Pollster John Zogby: “Obama is in the driver’s seat right now, especially where it really counts – in the electoral votes. Bob Barr could really hurt McCain’s chances. McCain can’t afford the level of slippage to Barr we found among conservatives in this polling. While there has been plenty of talk about Obama’s recent emphasis on his centrist positions, he can get away with it during these dog days of the campaign as McCain finds himself still trying to shore up the conservative base. McCain will have to move to the center because right now Obama is clobbering him among independents. But there is the rub for McCain: Bob Barr has some juice among conservatives and is hurting him in several states. ”

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