Donald Trump said he is now competing against Kamala Harris in the US presidential race as he labelled Joe Biden a “broken-down pile of crap” in an expletive-laden rant on a golf course. The remarks, captured on video, were another indication that Republicans were preparing for the vice president to replace Mr Biden following his disastrous debate performance.In the footage, Mr Trump, 78, can be seen sitting in the driver’s seat of a golf cart as he asks people nearby what they thought of the debate.