Hillary Rodham Clinton's campaign reached a deal to pay a key South Carolina black leader's consulting firm more than $200,000 just days before he agreed to endorse her run for president.....The arrangement involves South Carolina state Sen. Darrell Jackson, a well-connected African-American leader and pastor whose support is coveted by national campaigns. Jackson confirmed that his public-relations firm struck a deal with Clinton's campaign just days ago for a contract worth up to $10,000 a month through the 2008 elections. Jackson had also been in talks with Sen. Barack Obama's campaign about endorsing him and a consulting contract for more...