WASHINGTON - The House ethics committee's top Democrat, under fire from Republicans, said Friday he's unaware of any errors in his financial disclosures the past nine years. Rep. Alan Mollohan (news, bio, voting record), D-W.Va., provided a detailed explanation of his investments a week after a conservative group questioned the accuracy of his annual financial reporting. Republican campaign officials called for his resignation from the ethics panel, but Mollohan refused to step down. The allegations could have an impact on the ethics committee's ability to investigate wrongdoing and could be a factor in this year's congressional elections. The committee has...