WASHINGTON (AP) -- Democrat Barack Obama said Sunday he was reluctant to ask for Secret Service protection this early in the 2008 presidential race.

"I'm not an entourage guy. You know, up until recently, I was still taking my wife Michelle's grocery list and going to the grocery store once in awhile," the Illinois senator said.

Obama, who is black, acknowledged that some of the threats against him were racially motivated.

"You know, I don't spend a lot of time thinking about it or considering the details of this, but just to broaden the issue, are there people who would be troubled with an African-American president? Yes," he said. "Are there folks who might not vote for me because I'm African-American? No doubt."

But Obama said that if he doesn't win, it will not be because of the color of his skin.

"It's going to be because I didn't project a vision of leadership that gave people confidence. It's going to be because of something I didn't do as opposed to because I'm African-American," he said.