Labour MP Trevor Mallard, who was responsible for $36 million in government funding for Team New Zealand's America's Cup bid, is one of the politicians on a taxpayer-funded visit to San Francisco to watch the finals series.
Cabinet minister Amy Adams is also in the city and Sport and Recreation Minister Murray McCully is expected to stop off at the New Zealand base later this month.
Mr Mallard, who held the Sport and America's Cup portfolios when he was in the Cabinet, sought permission from the Speaker and his party leader to make the trip and for it to come out of his parliamentary expenses.
He plans to stay in the US until Team New Zealand win or until Parliament sits again next week.
He said he would meet expat business leaders in San Francisco and also fledging firms that could benefit from the support of senior MPs.