Each Wednesday, DiversityInc gives you a roundup of what top Democratic and Republican presidential nominees are doing, what they're saying, and issues of concern to you.

McCain Welcomes Back Imus

Republican presidential nominee Sen. John McCain was among the first guests to welcome Don Imus back to the airwaves on Monday. McCain was a frequent guest on Imus' show before the shock jock was fired. Presidential candidate Chris Dodd, D-Conn., was also a guest on the program. McCain, who called into the show, said he would continue the military's "don't ask, don't tell" policy unless military officials recommended a change in course. Signing off, he said to Imus, "Thanks for having me on. Welcome back, old friend." (See also: Is Imus for Real?)

Did Obama 'Have a Dream'?

Barack Obama's recent oratory in Iowa was clearly patterned after Dr. Martin Luther King Jr.'s "I Have a Dream" speech, reports American Thinker. Obama went on to reinforce the comparison with a quote from King's famous speech as he cited "what Dr. King called 'the fierce urgency of now.'"

Obama on Jena 6 Nooses

Barack Obama told a Harlem fundraiser at the historic Apollo Theater on Thursday that he deplored the notion that hanging nooses and Jena 6 cases are still found in America, reports Boston.com. He added that if elected president, he could be counted on to enforce civil-rights laws. Read all about the Jena 6 on DiversityInc.com.

New Poll Shows Support for Clinton, Giuliani Dipping

Less than one month before the Iowa caucus, a new USA Today/Gallup poll shows support for Sen. Hillary Clinton and Republican frontrunner Rudy Giuliani is slipping, reports USA Today.com. Clinton's ratings among Democrats dipped 11 percentage points; she now leads Obama, whose ratings increased 2 percentage points from early November, 39 percent to 24 percent. Giuliani's standing among Republicans dropped 9 points; the former mayor of New York City now leads former Arkansas Gov. Mike Huckabee, who jumped from fifth place to second in the recent poll, 25 percent to 16 percent.

Romney Prepares to Address Faith Issue

Republican presidential nominee Mitt Romney is preparing to address the nation Thursday in a speech that will address concerns about his Mormon faith, reports CNN.com. Romney said he would answer questions as to how his faith would affect his presidency. (See also: Commentator: Romney, Victim of Bigotry, Turns on U.S. Muslims)