WASHINGTON — Sen. Tom Coburn's campaign raised relatively little money in the first three months of the year as he continued to deliberate on whether to run for a second term. Coburn, R-Muskogee, collected $17,189 in the quarter and had only $57,064 in the bank at the end of March, according to his latest campaign finance report. Coburn spent about $5 million winning his Senate seat in 2004. The senator has said repeatedly this year that he hasn't decided whether to run for a second term and he told The Oklahoman last month that he didn't want to raise money in earnest unless he was definitely going to run. "Is it unethical to ask people to give you money for an election you're not sure you're going to run in?'' Coburn said in March. "I think it is. You're asking people to give you money for something you haven't committed to." Most of the money he raised in the first quarter of this year came from political action committees, including ones representing pharmacists and ONEOK employees. He also said that he wasn't worried about raising money should he decide to run. In 2004, Coburn announced as a candidate months after others — including former Oklahoma City Mayor Kirk Humphries and Oklahoma Corporation Commissioner Bob Anthony — had been campaigning and raising money. But he still won the Republican nomination without a run-off. Earlier this week, Coburn was endorsed by the Club for Growth political action committee. The Washington-based group, which favors low taxes and less government spending, endorsed Coburn in 2004, and its members around the nation flooded Coburn's campaign coffers. Coburn has said he has no timetable for making a decision.