OKLAHOMA CITY (Reuters) - Retired general Wesley Clark's only son blasted the media for its coverage of his father's bid for the Democratic nomination Tuesday and said he would like to see his father withdraw from the race if he does not win the Oklahoma primary.

Wesley Clark Jr. a 34-year-old screenwriter, in a meeting with reporters while his father called voters from a phone bank, said; "I'd like to see him win today. If he doesn't win I don't want to see him stay out there.

"It's a really disillusioning experience."

In a rare outburst by a member of the Clark family, Clark Jr. launched into a harangue about the unfairness of the media and dirtiness of politics.

"You go out and see the way politics really works. It is a dirty business filled with a lot of people pretending to be a lot of things that they are not," he said.

"There was a lot of sneering and whispering going on by columnists and talking heads. ... It is all a horse race. No-one is talking about the issues."

Wesley Clark Jr. was clearly frustrated by the fact that the biggest Wesley Clark media story over the weekend in Oklahoma City was that the drivers of his father's three-car caravan got speeding tickets during a late-night journey between campaign stops.

"It is a helluva way to pick a president," he said.

Clark Jr. said the media had not been fair to his father or any of the other candidates and was giving President Bush a free run. "It's all about access. You know you would be denied access if you all covered this fairly," he said.

He said his father had sacrificed a lot for his country in his 35 years in the military and that he was proud of him and the race he was running. But he said no one was reporting his stand on the issues.