The investigation into Donald Trump’s election campaign has resulted in guilty pleas from some of the president’s former inner circle. The Guardian’s Jon Swaine in New York considers what we have learned so far from Robert Mueller’s forensic investigation into Russian meddling in the 2016 US election. Plus: Robert Booth on the first phase of the inquiry into the Grenfell Tower fire

Robert Mueller’s investigation into Russian interference in the 2016 US election has seen the latest in a series of high-profile guilty pleas in recent weeks. The president’s former lawyer and fixer Michael Cohen joined his former campaign chair Paul Manafort and his former national security adviser Michael Flynn in cooperating with the FBI.

The Guardian’s Jon Swaine takes Anushka Asthana through the major turning points so far in Mueller’s inquiry and considers where it could go next. Is the net closing in on the president, his property business and his immediate family?

Also today: it’s exactly 18 months since the Grenfell Tower fire in London that claimed the lives of 72 people. The Guardian’s social affairs correspondent, Robert Booth, has been following the inquiry as it concludes its first phase. He reflects on the testimony he has heard, and how the families are reacting to the announcement of delays in the second phase.