Volodymyr Zelensky pleaded with US lawmakers to maintain military support for Ukraine on Thursday, as Republicans signalled that they would try to block a new funding package put forward by Joe Biden.The Ukrainian president addressed senators in a private meeting on Capitol Hill, warning that his country would “lose the war” without US support, before meeting the US president in the White House.His second visit to Washington since the start of Russia’s full-scale invasion comes as Ukraine attempts to push through Russian defensive lines in the south and east as part of a major counteroffensive that Kyiv says requires more...