Former Democratic presidential nominee Hillary Clinton warns Russian President Vladimir Putin "hasn't had the last laugh yet" in her new memoir about the 2016 election.

"There's nothing I was looking forward to more than showing Putin that his efforts to influence our election and install a friendly puppet had failed," Clinton writes in "What Happened," according to CNN.

"I know he must be enjoying everything that's happened instead. But he hasn't had the last laugh yet," she adds.

U.S. intelligence agencies believe Russia was behind the hack of Clinton campaign chairman John Podesta's email and the Democratic National Committee, though Putin has repeatedly denied any involvement.

Special counsel Robert Mueller was appointed by the Justice Department to investigate Russia's meddling in the election and alleged ties between Trump's presidential campaign and Moscow.

Clinton's book will be released Sept. 12.