By CNN's Wolf Blitzer
(CNN) - The latest twists in the Herman Cain sexual harassment allegations remind me of so many other similar stories we've seen play out in Washington over the years.
No matter how the story begins, you don't know where it will wind up.
What we do know is there is very high interest in the journalistic and political communities. Allegations of high-stakes politics and anything involving sex always ensure lots of attention.
The fact that Cain is atop the Republican state and national polls right now only fuels the coverage. He is, after all, running for the Republican presidential nomination.
The pressure on Cain is building. I think that explains his angry exchange with reporters on Wednesday who were shouting questions at him.
Cain is well known publicly for always having a nice temperament. Even in the face of some tough questioning, he has always remained steady – and usually with a smile.
That's why I was surprised when he let reporters have it during that testy exchange. He could have simply said – with a smile – that he has not been ducking questions, that he has done several substantive interviews in recent days, and would continue to do more. Instead, he reacted angrily.
To a certain degree, I can't blame him. The allegations of sexual harassment are ugly. This is not something anyone would want to confront. And reporters, I can testify, can be relentless.
But if you want to be president of the United States, you have to be ready for this kind of treatment. As they say: If you can't stand the heat, get out of the kitchen. It comes with the territory.
Bill Clinton, when he was running for the Democratic nomination in 1992, had to deal with the Gennifer Flowers sexual allegations story. He did, including a joint appearance with Hillary Clinton on "60 Minutes." Clinton won the nomination and the presidency that year.
Bottom line: Cain should review how other national politicians have dealt with similar allegations, and learn some lessons.
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