GOLDEN, Colo., Sept. 16 (UPI) -- Democratic U.S. presidential candidate Barack Obama promised Tuesday he would take a proactive role to prevent future financial meltdowns.

WASHINGTON, Sept. 15 (UPI) -- U.S. Democratic presidential nominee Barack Obama Monday aired a new TV ad that accuses Republican rival John McCain of running a dishonest campaign.

NEWARK, N.J., Sept. 7 (UPI) -- Democratic U.S. presidential nominee Barack Obama says Republican opponent John McCain is out to privatize social security.

ST. PAUL, Minn., Sept. 5 (UPI) -- Journalists, welcomed by John McCain four years ago, were accused of biased reporting by McCain's campaign during the Republican convention in St. Paul, Minn.

ARLINGTON, Va., Aug. 28 (UPI) -- Sen. John McCain's presidential campaign Thursday said Barack Obama made a "misleading speech" in his acceptance speech at the Democratic convention in Denver.

DENVER, Aug. 28 (UPI) -- Republican officials may postpone the GOP convention if Tropical Storm Gustav makes landfall along the Gulf Coast this weekend, Fox News Channel said Thursday.

WASHINGTON, Aug. 27 (UPI) -- Aides to John McCain say Hillary Clinton was less than convincing when she endorsed Barack Obama as the best man to be the next U.S. president.

CARDIFF, Wales, Aug. 26 (UPI) -- Campaigners for likely Republican U.S. presidential nominee John McCain say it was "outrageous" for Madonna to compare him to Adolf Hitler at a Wales concert.

ATLANTA, Aug. 26 (UPI) -- A top aide to John McCain says the presumptive Republican Party nominee for president lost no ground to Democrats in the opening day of their convention.