Global uncertainty following news that President Donald Trump has been hospitalised with Covid-19 underscores the downside of an administration that has built its foreign relations around the president’s personality, rather than well-crafted policy, and undercut the good will of allies amassed over decades, say analysts.“Allies will be thinking, ‘If the US can’t get a handle on the pandemic to the point where it gets into the Oval Office, what does it say if we need the support of the marines?’…