US President Donald Trump has stood by his claim that Barack Obama wiretapped Trump Tower last year. He told Fox News that a wiretap covers a lot of different things and hinted more could emerge in the coming weeks. Mr Obama has denied the charge and former spy chiefs and several lawmakers have said they have seen no evidence. <br/><br/>The latest senior figure to cast doubt on the allegation was the Republican Chairman of the House intelligence committee. Devin Nunes said, he does not believe there was an actual tap of Trump Tower.