Vladimir Putin will seek to nominate his chosen successor this year amid heavy losses on the battlefield, Abbas Gallyamov, his former speechwriter, said Putin's circle no longer see him as a 'guarantor of stability' and are alarmed by the rise of Yevgeny Prigozhin, head of the well-armed Wagner private army, which is so far loyal to the Kremlin but could turn on an elite seen as failing in the war, Gallyamov said. They fear being slaughtered with Prigozhin's sledgehammer - the extrajudicial punishment given to his jail convict soldiers who refuse to fight or seek to defect to Ukraine. One...