A man from Ames who is a construction worker may become a “regular” in Massachusetts Senator John Kerry’s presidential campaign. Gene Thorson is a cement mason by trade, but this past Saturday night he was center-stage at a political event, sitting by Kerry. Thorson and Kerry served together in Vietnam. They were part of a six-man boat crew. Kerry was the only officer aboard. Thorson was the tailgunner. Thorson will campaign on Kerry’s behalf whenever he can. He says Kerry is a caring person who believes in what he’s doing.Kerry introduced Thorson at this past Saturday’s banquet, giving Kerry to ability to speak more extensively about his own experience in Vietnam. Kerry says the bonds built during war “are as close to men coming to the point of using the word love and admitting it” as you’ll find. And Kerry got the crowd to give Thorson a standing ovation.The next wave of campaigning hits Iowa Wednesday afternoon when Gary Hart meets with Iowans who supported his 1984 and ’88 bids for the White House. Hart delivers a speech on foreign policy in Ames on Wednesday night.