A former advisor to US President Donald Trump whose contacts with Russians set off the investigation into possible collusion with Moscow was jailed Friday for lying to the FBI.

The Democratic Party files a lawsuit alleging that Russia, WikiLeaks and top officials from Donald Trump's campaign conspired to tilt the 2016 US presidential election in the Republican's favor.

Facebook Inc says it has suspending consulting firm Strategic Communication Laboratories (SCL) and its political data analytics firm Cambridge Analytica after it found they had violated its policies.