Former House Speaker John Boehner said Thursday that he would not be taken aback if Democratic front-runner Hillary Clinton was forced to withdraw from the 2016 race.

Speaking at the SALT Conference in Las Vegas, Boehner reportedly said such a scenario would not surprise him he could see Vice President Joe Biden taking her place as the party's nominee.

The comment came as the FBI is said to be in its finals stages of an investigation into Clinton's email conduct while secretary of state.

An email conversation made public Thursday revealed Clinton, frustrated with technical issues, once abandoned a secure line in favor of using her house phone to talk to a top aide.

Biden said earlier this week that he "would have made the best president," but ultimately decided not to run for the nation's highest office after his son Beau died last May of cancer.

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