Iowa shows polling is slippery business, getting more so

WASHINGTON (AP) — Iowa's snow-covered fields and friendly villages were fraught with danger for pollsters, who had a tough time pinning down the state's fickle electorate. Most poll-takers took it on the chin when Donald Trump's lead in pre-election polls ended with a Ted Cruz victory at Monday's caucuses. Marco Rubio's strong third-place showing among Republicans seemed to sneak up on pollsters, too.

WASHINGTON (AP) — Iowa's snow-covered fields and friendly villages were fraught with danger for pollsters, who had a tough time pinning down the state's fickle electorate. Most poll-takers took it on the chin when Donald Trump's lead in pre-election polls ended with a Ted Cruz victory at Monday's caucuses. Marco Rubio's strong third-place showing among Republicans seemed to sneak up on pollsters, too.…