Kathy Griffin has found herself at the centre of controversy once again on Tuesday, after suggesting U.S. President Donald Trump should use a syringe full of air.The American leader made a remark at an event in the White House for seniors suffering from diabetes, where he asked if he should be on “insulin.” The comment came just weeks after Trump hit headlines worldwide for suggesting the injection of disinfectants as an effective treatment against the coronavirus.Responding to Trump’s latest gaffe, comedian Kathy – who was previously investigated by the Secret Service after a now infamous photoshoot in which she held up the severed head of a Trump effigy – took to Twitter to offer her own advice.“Syringe with nothing but air inside it