WASHINGTON (AP) — The ranks of America's poor are on track to climb to levels unseen in nearly half a century, erasing gains from the war on poverty in the 1960s amid a weak economy and fraying government safety net.

Census figures for 2011 will be released this fall in the critical weeks ahead of the November elections.

The Associated Press surveyed more than a dozen economists, think tanks and academics, both nonpartisan and those with known liberal or conservative leanings, and found a broad consensus: The official poverty rate will rise from 15.1 percent in 2010, climbing as high as 15.7 percent. Several predicted a more modest gain, but even a 0.1 percentage point increase would put poverty at the highest level since 1965.