Preliminary results of a study on presidential campaign donations shows that President Obama had more than 3.7 million donors compared with 827,000 who donated to Sen. John McCain (R-Ariz.) And while Obama had a substantial lead over McCain in small donors -- $200 or less -- Obama also led in the number of individuals who gave at or near the legal limit of $4,600, researchers at Brigham Young University said. Donors gave Obama $700 million to Obama (sic) and $316 million to McCain. Donations from individuals giving $200 or less represented nearly a quarter ($178 million) of Obama's fund-raising total...