Kerry's comments came a day after Syrians in government-controlled areas voted in a presidential election all but guaranteed to hand President Bashar Assad another seven-year term. Voting did not take place in rebel-held areas, and the opposition has denounced the vote as a farce.
"Nothing has changed from the day before the election and the day after. Nothing," Kerry said during a one-day visit to the Lebanese capital. "The conflict is the same, the terror is the same, the killing is the same."
The European Union joined the U.S. in condemning the election, saying in a statement that "it cannot be considered as a genuinely democratic vote."
Syria's 3-year-old conflict, which activists say has killed more than 160,000 people, has left the international community deeply divided, with the U.S. and its allies backing the revolt against Assad, who enjoys the support of Russia and Iran.
That division persisted in perceptions of Tuesday's vote, which Assad's allies insisted makes his removal by military means impossible.
In Damascus, meanwhile, a delegation led by the government's chief international supporters said Syria's first multi-candidate presidential election in over four decades was transparent and free, and would pave the way for "stability and national agreement."
The delegation of officials from more than 30 countries, including legislators and dignitaries from Iran, Russia and Venezuela, toured polling stations on Tuesday.
In a final statement read Wednesday by Alaeddin Boroujerdi, the head of the Iranian parliament's Committee on National Security, the delegation blamed the US and its allies for "crimes committed against the Syrian people."
The Syrian government claims that the uprising against Assad is part of a foreign conspiracy to destroy the country.
Voting took place only in government-controlled areas, excluding much of northern and eastern Syria. Tens of thousands of Syrians abroad voted last week, although many of the more than 2.7 million Syrian refugees across the region either abstained or were excluded by law.
Assad, 48, has ruled Syria since 2000, when he took over after the death of his father, Hafez Assad, who ruled the country for the previous three decades. On Tuesday, the younger Assad faced two government-approved challengers, Maher Hajjar and Hassan al-Nouri, both of whom were little known before declaring their candidacies in April.
Russian Senator Alexey Alexandrov, a member of the delegation, told reporters in Damascus that the elections assured "Assad's legitimacy and meant he could not be removed in a military operation."
"I am sure that the elections that happened in Syria were done according to all the principles of democracy and international law," said the senator, whose country, along with China, has four times vetoed UN Security Council sanctions on Damascus.
"It's impossible ... to remove any legitimate leader elected by the people in a military maneuver," he said.
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