Bloomberg.com: Politics
Democratic presidential candidate
Barack Obama leads his Republican rival
John McCain by 49 percent to 43 percent nationwide among registered voters, according to a new Washington Post-ABC News poll.
A margin of error of plus or minus 3 percentage points - this means the results can be in the range of Obama 52 to 43 McCain
or 46 to 43.
I get so frustrated when polls do not give the margin of error.