In just about any discussion of a poll about the very close presidential race between Vice President Kamala Harris and former President Donald Trump, you'll hear the ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...

Those results were within our poll’s margin of error, meaning we were correct to declare it “too close to call” — and we would have been wrong to say Clinton was ahead.

In that year, some polls in Florida, for example, indicated that Hillary Clinton was just a couple of percentage points ahead ...