US Department of State officials confirmed on Monday that they had recently received nearly 15,000 emails from the Federal Bureau of Investigation as part of the bureau's investigation into Hillary Clinton's email server. These were not among the 30,000 emails that Clinton's lawyers previously provided to the department.

The scandal involving Clinton's use of her personal account for classified emails, escalated after WikiLeaks released declassified emails indicating that she negotiated with high-level Democratic Party officials to be the party's presidential candidate and used funds donated to the party for her personal presidential campaign.

The disclosure in early August that the Clinton Foundation helped bring donors, some of whom have what US society believes is a "bad human rights" record, into contact with the US government, brought a new twist to the email scandal, given that it showed people the celebrity political couple's surreptitious earnings. Republican presidential nominee Donald Trump has even accused Hillary Clinton of committing a crime.

Public opinion in the United States is divided about how serious the problems revealed by the email scandal are and thus the outside world is more confused.

However, the "insider information" revealed from time to time in the US presidential campaign does reflect that the US' democratic system is by no means flawless.

Being embroiled in such a scandal in other countries would probably mean the end of a political career. However, the US society is a realistic one. Despite Trump's "nonsense" and Clinton's scandals, US voters will have to choose between them, because they have no other choice.

The US presidential system once helped the US ascend to the "crest of power", but the current presidential election seems to prove that "things can be done seriously although started as a joke".