On Tuesday, having lost by 40% to 49%, Mr Lamont called Mr Lieberman to concede defeat.
The American saw four set points come and go at 5-4, but refused to concede defeat.
The presidential candidates have promised to concede defeat if they are not declared winners.
But his opponent, the Russian-backed Victor Yanukovich, refused to concede defeat and threatened to challenge the result in court.
Soon after polling stations closed he called his challenger to concede defeat, quashing rumours of imminent clashes between rival supporters.
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Germany and France said a City tax will be part of a new European treaty in an aggressive move that will force David Cameron to concede defeat or allow the eurozone to advance without Britain.
Kerry called Bush Wednesday morning to concede defeat after initially holding out hope that uncounted provisional ballots could give him an edge in Ohio, which would have given him the electoral votes needed to win the election.
Mudavadi, from the Orange Democratic Movement, had earlier called on Kibaki to "acknowledge the will of the Kenyan people and concede defeat" to help end a tide of violence he said had been provoked by the extended delay in releasing the results.
To concede is to admit defeat, and to admit to the world that where there is smoke there is fire.
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As I see it, we either play our hand, however unfavorable it appears to be, or we concede defeat and fatalistically accept the consequences.
Far more significant is the strategic message that in spite of the Baker-Hamilton report, and notwithstanding the growing pressure from public opinion and a Democrat-controlled Congress, this president will not in his remaining two years concede defeat and abandon Iraq to its fate.
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