The New York Times' John Broder and Adam Nagourney report on the Edwards's campaign struggle with Elizabeth Edwards' returning cancer. John Edwards and his wife told aides Wednesday evening that she was diagnosed with incurable, but treatable Stage 4 breast cancer. Edwards's aides "said he had not discussed dropping out or suspending his campaign with them."

The writers remind us that several candidates, or their spouses, have battled serious illness: Sen. John McCain with skin cancer, Rudy Giuliani with prostate cancer and Bill Clinton's heart disease and Mitt Romney's wife who has multiple sclerosis.

However, the Washington Post's David Brown reports that Mrs. Edwards's "chance of surviving five years is well below 50 percent if her experience is similar to that of other women whose breast cancer has returned within five years of its original discovery and treatment." Survival rates vary greatly between women and drug treatments can help extend cancer patients' lives even though their cancer is not curable.

Meanwhile, it was revealed that "Big Sister" ad creator Philip de Vellis admitted to working on part of Sen. Barack Obama's website as part of his employment at Blue State Media, whose co-founder now works as Obama's director of new media.

The Hill's Sam Youngman reports that Bill Clinton jumped into the fray between Clinton and Obama on Iraq to make both candidates' Iraq positions look similar. Clinton: "I don't have a problem with anything Barack Obama (has) said on this," but "to characterize Hillary and Obama's positions on the war as polar opposites is ludicrous. This dichotomy that's been set up to allow him to become the raging hero of the anti-war crowd on the Internet is just factually inaccurate." Clinton said his wife voted for "coercive inspections" by casting "yea" on the 2002 Iraq resolution. "It's just not fair to say that people who voted for the resolution wanted war," Clinton said.

In New Hampshire, Obama was asked why he voted against an Iraq withdrawal bill last year, but submitted legislation last week to begin pulling out. Obama said last year's bill came immediately after elections in Iraq and that he wanted to send a message of U.S. support to the new government. "The Iraqi government has not used that time (since the 2006 legislation was defeated) to try to bring the parties together, but has used it to dig in to their sectarian agendas," Obama said.

In Nevada, the state GOP will discuss today moving its caucus date to Jan. 19, 2008, the same day Democrats will caucus in the state. The current date stands at Feb. 7, but the reports that "many in the GOP felt the Nevada caucus would be overshadowed" by the attention on Super Tuesday, Feb. 5.

Yesterday more marriage problems surfaced for Rudy Giuliani, or more specifically his wife Judith, who revealed yesterday that she's been married three times, not two, as has been previously reported. She married her first husband in 1974 and divorced him in 1979 - reportedly the same year she married her second husband.

Meanwhile, Rep. Tom Tancredo said he's more likely to run for president after his exploratory committee raised $1 million for this year's first quarter.

Mitt Romney is stepping away from Salt Lake City mayor Rocky Anderson, a liberal Democrat calling for the impeachment of President Bush (video). Anderson and Romney became friends when Romney was working on the 2002 Olympics in Salt Lake and both men filmed television ads in support of each other's candidacies after the Olympics. Here's the ad Romney filmed on behalf of Anderson:

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