JIMMY CARTER-CANCER

ATLANTA — Former President Jimmy Carter says he will step back from his humanitarian work and surround himself with his family as he undergoes three months of treatment for melanoma cancer. 

PRESIDENTIAL RACE-BUSH STRUGGLES

KEENE, New Hampshire — Republican presidential candidate Jeb Bush lashes out at rival Donald Trump as the former Florida governor fights to energize his stalled campaign and stop the billionaire businessman's summer surge.

PRESIDENTIAL RACE-CLINTON

WASHINGTON — Hillary Rodham Clinton is facing fresh worries among congressional Democrats about her use of a private email account while serving as secretary of state, as new polls signal the inquiry is taking a toll on her presidential campaign.

CHEATING WEBSITE

WASHINGTON — Hundreds of U.S. government employees — including some with sensitive jobs in the White House, Congress and law enforcement agencies — used Internet connections in their federal offices to access and pay membership fees to the cheating website Ashley Madison, The Associated Press has learned. 

BRAZIL-CORRUPTION

SAO PAULO — Brazil's attorney general files corruption charges against the speaker of the lower house of congress and against a current senator who was impeached while serving as president in the early 1990s. 

VENEZUELA-COLOMBIA BORDER

CARACAS, Venezuela — Venezuelan President Nicolas Maduro has ordered the temporary closure of a major border crossing with Colombia and says he will bolster military forces there following an attack on three soldiers who were looking for smugglers. 

PERU-DRUG FLIGHTS

LIMA, Peru — Peru's Congress votes unanimously to authorize military planes to shoot down suspected drug flights, which police say smuggle more than a ton of cocaine to Bolivia daily.