THE RACE: The presidential race for Democrats nationally

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THE NUMBERS: CBS News-New York Times

Barack Obama, 46 percent

Hillary Rodham Clinton, 38 percent

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OF INTEREST:

This poll has warning signs for Obama. Though his lead over Clinton is slightly larger than it was in the last CBS-New York Times poll in early April, there are more undecided Democratic voters _ and fewer Democrats see Obama as the likely nominee than said so then. He still is seen as likelier than Clinton to defeat Republican John McCain, but by a narrower margin. Obama runs about evenly when matched up against McCain, losing the slight lead he had a month ago with sharply lower support now from white women. Clinton has maintained a small advantage over the Arizona GOP senator. Obama is viewed unfavorably by 10 percent more people than did so in early April.

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The CBS News-New York Times poll was conducted from April 25-29. It included interviews with 956 registered voters, for whom the margin of sampling error was plus or minus 3 percentage points. It also included interviews with 402 Democrats who say they either voted already in primaries or plan to do so, for whom the margin of sampling error was plus or minus 5 points.

THE NUMBERS: Fox News/Opinion Dynamics poll

Hillary Rodham Clinton, 44 percent

Barack Obama, 41 percent

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OF INTEREST:

The race between the two Democrats has changed little since the last Fox News/Opinion Dynamics poll in March, but this poll also has ominous signs for Obama. He is now viewed unfavorably by 42 percent of all voters, up 9 percentage points since February. Clinton’s unfavorable rating is slightly higher than Obama’s, but it has dropped slightly. By 10 points, Democrats now view Clinton as likelier than Obama to defeat Republican John McCain; Obama had a 4-point advantage on that question in March.

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The Fox News/Opinion Dynamics poll was conducted by telephone from April 28-29. It involved interviews with 900 registered voters, for whom the margin of sampling error was plus or minus 3 percentage points. It included 400 Democrats, for whom the margin of sampling error was plus or minus 5 points.

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COMPLETE RESULTS: http://www.foxnews.com