Roland Arnall certainly never has tried to hide his support for the Republican Party. He personally donated $5 million to help run a pro-Bush ad in 2004 and Ameriquest, a mortgage company Arnall founded, gave $250,000 to President Bush's inaugural in 2005. Arnall and his wife, Dawn, also helped raise more than $200,000 each to secure Bush's re-election. But another donation of Arnall's has received little attention. In 2004, Arnall donated $5 million to help fund the Republican National Convention in New York City. Arnall gave the donation in the name of RoDa Drilling LLC, a company he co-owned...