The Time and Gallup polls surveyed likely voters (likely in the opinion of pollsters).

ECONOMIST: The presidential election

For the first time, Gallup Polls show a majority of Americans support full marriage equality for gay couples.

CNN: 2013: America on the cusp of social change

Mr. COWING: Well, if you look at Gallup polls, it's kind of interesting.

NPR: Is the Space Shuttle Worth the Effort?

Gallup polls in the 1960s found that over half of all Americans thought that churches should not be involved in politics.

ECONOMIST: American values

Reliable figures on recent church attendance are hard to come by, but both Gallup polls and church records suggest it was flat between about 1980 and 1998.

ECONOMIST: Americans are joining clubs again

Using old-style quota sampling Gallup's polls had shown a Labour lead of 37 points.

ECONOMIST: Why the polls got it wrong last time

Obama carries a three-point poll lead over John McCain, according to Real Clear Politics, which averages the major tracking polls from Gallup, Zogby, Rasmussen and others.

FORBES: The Olympics Help Republicans

Various polls taken by other organizations since have generally confirmed the Gallup numbers.

CNN: By Ronald D. Elving, CQ Staff Writer

Romney's campaign has acknowledged its problem with African American voters: Polls show blacks overwhelmingly prefer Obama -- a recent Gallup tracking poll showed just 5% of blacks supporting Romney, compared with 87% for the president.

CNN: Romney draws boos from NAACP, support from conservatives

State polls seem to have turned Mr Bush's way: according to new numbers from Gallup, for instance, he now has double-digit leads in both Missouri and Ohio, which he won last time, and a tiny one-point lead in Pennsylvania, which Al Gore won.

ECONOMIST: The presidential election