The second meaning is someone nominated by the sitting U.S. President for appointment to any of numerous governmental positions, under the President's executive authority, subject to the approval of Congress.
In United States politics, the presumptive nominee is a political candidate who - barring unforeseen events or circumstances - is assured of his or her party's nomination, but has not yet been formally nominated. A candidate may be considered a presumptive nominee after all other major competitors have dropped out and it is considered unlikely that the candidate will withdraw, be usurped, or be otherwise removed from the race.
List of candidates in the United States presidential election, 2008
The following are lists of candidates in the 2008 United States presidential election. Candidates who are not on any state ballots, withdrew from the race, suspended their presidential campaign, or failed to earn their party's nomination are listed separately.
All candidates in the table below were on the ballot in multiple states. Those who were on the ballot in enough states to win a majority in the U.S. Electoral College are marked in bold. Candidates who were on the ballot in no more than one state are listed in the next section.