20:36 Trump, with Zelensky, again rejects need for urgent Ukraine ceasefire
20:25 Trump says US to be 'involved' in Ukraine's future security
20:23 Trump says will meet Putin and Zelensky if 'everything works out'
20:22 Zelensky thanks Trump at White House for trying to "stop killings"
20:20 Trump greets Zelensky at White House