Watergate scandal: Here is a timeline of how events unfolded

It all began when a vigilant night watchman noticed a piece of tape on a door of the building where the Democratic National Committee's headquarters was located in Washington in June 1972.

Watergate: The president-toppling scandal triggered by a piece of tape

US agents extracted a high-level Russian government source who had confirmed Vladimir Putin's direct role in interfering in the 2016 US presidential election, US media reported late Monday.

US extracted spy that confirmed Putin role in 2016 US vote: Reports

Emails show that the party's national committee was coordinating with reporters to put out negative stories about Bernie Sanders

WikiLeaks releases 20,000 emails of Democratic party officials working against Bernie Sanders

A source and two US security officials said that the hackers appear to have used 'spear phishing' techniques to gain access

Clinton Foundation hired cyber firm after suspected hacking, say sources

It was not clear what information on the Clinton campaign?s computer system hackers would have been able to access

Clinton campaign also hacked in attacks on Democrats

The White House and the State Department deferred to the FBI on whether Russia was to blame, but Clinton camp was quick to accuse Moscow

FBI probes Democratic email hack, Clinton campaign blames Russia