Remember all those predictions about how the Democratic winner in Iowa would slingshot toward the nomination with a ton of momentum at his or her back? And what about all that focus on New Hampshire? Or Super Tuesday becoming a general election-like battle for states?
If your political GPS tells you we're well beyond the battle for early state momentum it's dead on. Welcome to the world of delegates.
Unlike November's winner-take-all system of electoral votes, Super Tuesday, the Feb. 5 nationwide battle for delegates, was largely proportional, leaving the Democratic contest split while propelling Sen. John McCain, R-Ariz., toward the Republican nomination.
Following Super Tuesday, Sen. Barack Obama, D-Ill., went on an impressive 10-0 run against rival Sen. Hillary Clinton, D-N.Y., which was only broken by critical Clinton wins in Texas and Ohio on March 4 and Pennsylvania on April 22.
On both sides of the aisle, candidates have to win a simple majority of delegates to secure the nomination. That is, half the total convention delegates plus one.
For Democrats, that magic number is 2,025 out of 4,048 total delegates; for Republicans, it's 1,191 out of 2,380 delegates.
In previous cycles, the combination of early momentum and candidate withdrawals allowed the nomination to be effectively sewn up before the candidate hit the actual magic number of needed delegates.
But this election has been like no other -- defying expectations and countering conventional wisdom at almost every turn.
The two parties differ in their rules for defining and allocating delegates, and perhaps it's no surprise that the two parties' philosophies on this process reflect their overall political philosophies.
The Democratic National Committee oversees its party's delegate process, acting as a central authority for the 50 states and territories, and applying the same standards and rules across the board to each delegate race.
Unlike the GOP, there are no winner-take-all states on the Democratic side. Democrats accumulate delegates proportionally, using the popular vote from either the state or district contests.
Adopting the states' rights attitude central to its party, the Republican National Committee gives considerable leeway to the state parties to determine how they select delegates and award them to candidates.
GOP races vary state by state, but for most of Super Tuesday's 21 contests -- which all but locked up the nomination for McCain -- winners were accumulated in a winner-take-all manner.
Democratic delegates divide into two groups: pledged delegates and superdelegates.
Pledged delegates are any of the 3,253 Democratic delegates awarded through voting in state primaries and caucuses. To win them, Democratic candidates must capture at least 15 percent of a statewide vote or 15 percent of the vote within a congressional district.
As a result, candidates are likely to push in every state -- especially delegate-rich ones -- because there is always the possibility of picking up some delegates and blunting a clean victory for the statewide winner.
In Nevada, Barack Obama was able to accumulate an estimated 13 delegates compared with Hillary Clinton's estimated 12 despite her 6-point victory.