To inform as many people as possible at once.
A candidate that is running for President receives their nomination at their party's convention. This is a meeting that is held to announce the results of an election.
Republican presidential candidate Jon Huntsman will open his national campaign headquarters in Orlando.
They have nominating speeches and then they vote. After somebody gets a majority, the voting stops and somebody moves to declare the winner by acclamation. There is not a speech to announce the winner. The nominee later makes a speech to accept the nomination.
Newt Gingrich.
This means to officially publish the informal rules.
Springfield, Illinois
To announce officially; proclaim: to declare a state of emergency; to declare a winner.
February 10, 2007
They get together in Max but they officially announce it in Fang
of course not. JE did not officially announce that so of course they are not.
"Proclaimed" means to announce or declare something publicly or officially.
Unknown candidates do not have any particular name. People will announce are running. Some are nominated by obscure parties and are put on the ballot in some states. Third parties candidates sometime attract a significant number of votes, but they are hardly unknown. A darkhorse is a candidate who was not expected to win the nomination, but is nominated by a major party.That may the term you are thinking of.