He has encroached on Barack Obama’s presidency, meddled in foreign policy, and his scattershot tweeting worries even Republicans, says Elizabeth Drew

Their stated admiration for one another will put Russia on an equal footing with the US, but Putin’s popularity at home depends on having an enemy, says William Pomeranz.

The blueprint established in Chechnya is informing Vladimir Putin’s actions in Syria, writes John Lloyd, so don’t expect a letup in the onslaught any time soon