The remarkable stability of the two-man race will likely remain following Wednesday night's showdown in Denver. But the event kicks off one of the most anticipated and beloved parts of the presidential campaign, and will provide endless fodder for Thursday morning quarterbacking in political circles. And the debate may just give the sliver of remaining undecided voters an idea of who they will vote for come November 6.
Rebekah Metzler is a political writer for U.S. News & World Report. You can contact her at firstname.lastname@example.org or follow her on Twitter.