Republican Senator Ben Sasse, in a six-word statement, says: ‘This is rotten to the core’

Outgoing US president’s use of pardon power has attracted considerable controversy

The 45th US president: 2017-2020 timeline

Report outlines attempts by campaign officials to profit from Donald Trump’s rise

Questions remain about WikiLeaks, Russian social media and what role did the White House have in Cohen’s false testimony?

No amount of belligerent tweeting, it appears, will make a resilient justice system bend to Donald Trump’s will

Former campaign adviser pleaded guilty to lying to FBI about his contacts with Russians

Papadopoulos’s account clashes with Trump’s stated lack of memory of any detail

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Since his election, five of US president’s key staff have admitted crimes or been convicted

Court told Papadopoulos lied about contacts with people said to be linked to Russian officials

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US president proclaims innocence, denounces inquiry into Russian election interference

The US president still sees himself as a maligned outsider struggling to be taken seriously

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US attorney general recalls attending a meeting with George Papadopoulos

Presidential moments: crowd size, Russia, travel ban, firings, North Korea, accusations