In a special edition of HARDtalk from the Ambrosetti Forum in Italy, Stephen Sackur speaks to long-time Republican US Senator Lindsey Graham. He is perhaps the most forceful and voluble defender of former President Donald Trump in Washington DC. The expectation is that Trump will run again for president and try to regain the White House in 2024. But with legal troubles piling up, Republicans must decide - can they afford to remain the party of Trump?