John McCain has cancer (melanoma) and has undergone multiple operations for it.<ref>http://www.riskworld.com/PressRel/2001/01q3/PR01a027.htm</ref> Cancer was an issue that hurt the presidential candidacy of Paul Tsongas in 1992. However, it was not even mentioned in the 2004 presidential campaign, despite the fact that John Kerry was treated for prostate cancer in early 2003. | John McCain has cancer (melanoma) and has undergone multiple operations for it.<ref>http://www.riskworld.com/PressRel/2001/01q3/PR01a027.htm</ref> Cancer was an issue that hurt the presidential candidacy of Paul Tsongas in 1992. However, it was not even mentioned in the 2004 presidential campaign, despite the fact that John Kerry was treated for prostate cancer in early 2003. |