【明報專訊】With just six states left where vote-counting has yet to be completed, Joe Biden, the Democratic candidate in the US presidential election, is enjoying a clearer lead and is getting increasingly close to the threshold of being elected. For Trump to pull back and win, he must take back the states where Biden is ahead through recounts and lawsuit. Trump's repeated accusations of election fraud have not been substantiated by any solid evidence so far, and it will not be easy to turn the situation around with a legal battle. But even if Biden is elected ultimately, it will not be easy to clean up Trump's mess. The pandemic in the US is out of control, with the daily numbers of confirmed cases rising to 100,000. No matter who is in charge of the White House, curbing the pandemic will already be an extremely daunting task. The polarisation of American society has intensified over the past four years. Whether the new administration can unite the people to fight the pandemic and govern effectively is also a matter of concern.