Pope Francis, 88, weighs in on Ukraine from hospital after Zelensky and Trump's row as he misses blessing for third week / Pope Francis makes 'slight improvement' but still critical, says Vatican / Pope Francis still critical but shows 'slight improvement', Vatican update claims / Pope Francis wrote resignation letter 12 YEARS AGO for if he became too ill to serve as Vatican say he's 'critical' / Pope Francis may abdicate for health reasons -- cardinal / Pope Francis battles on - Vatican insists he's in 'good spirits' / Pope Francis Hospitalized With Bronchitis, Undergoes Tests As Holy Year Events Canceled / Pope Francis slams Trump, says US migrant deportations 'will end badly' / Pope Francis warns of 'scourge of antisemitism' ahead of Holocaust Remembrance Day