John McCain, the Arizona Senator and current presidential candidate for the Republican Party, denied the latest media reports according to which he had an improper relationship with a female lobbyist.

The plain answer of the likely Republican presidential nominee about his alleged romantic link with telecommunications lobbyist Vicki Iseman was:

"It's not true."

"At no time have I ever done anything that would betray the public trust," the 71-year-old senator added.

The media reports detailing the supposed relationship between the two said that McCain pushed legislation that would have benefited Iseman’s clients.

The veteran lawmaker from Arizona and his wife Cindy attended a news conference in Toledo, Ohio. During the conference, McCain expressed his disappointment regarding the fact that the New York Times chose to run the article about his alleged improper relationship.

Cindy McCain also stepped up and confronted the report showing that several former aides of her husband suspected that his relationship with the female lobbyist "had become romantic" during his 2000 presidential campaign.

"My children and I not only trust my husband, but know that he would never do anything to not only disappoint our family" or to "disappoint the people of America," said Cindy McCain. She added that her husband was “a man of great character” and reiterated the disappointed in The New York Times.

McCain was asked directly if he had a romantic relationship with Iseman and he answered simply: “No.” The former Navy pilot during the Vietnam War then talked about his relation with Iseman and said they were “friends” and he had "seen her on occasions, particularly at receptions and fund-raisers and appearances before the committee."

However, even if both McCain and his wife denied the alleged improper relationship, the suggestion of marital impropriety could severely damage the senator’s relationship with social conservatives.

The veteran lawmaker is currently leading the Republican presidential contest and is hoping to win, despite several conservative critics that say he is out of step when it comes to issues such as immigration, tax policy and campaign reform.