Current presidential candidate Mike Huckabee won the Iowa Republican Caucus the first time he ran for the nomination in 2008, but ultimately lost to Sen. John McCain. What else do you need to know about the former Arkansas governor?
"There is nothing like a genuine crisis to put a political election in context. I do not have the answers, but the shocking Paris attacks have certainly given voters a reasonable list of questions to ask the 17 presidential candidates still eligible to return to debate stages in December."
Gwen Ifill is moderator and managing editor of "Washington Week" and co-anchor and managing editor of the "PBS NewsHour." The best-selling author of "The Breakthrough: Politics and Race in the Age of Obama," Gwen has covered seven presidential campaigns and moderated two vice presidential debates.