<p><strong>Exclusive:</strong> Latest Guardian revelation about gift from cryptocurrency tycoon comes as Reform UK leader forces byelection</p><p>The £5m gift to Nigel Farage by a cryptocurrency billionaire was reported to the National Crime Agency by bankers who were concerned it may have been laundered money, the Guardian can reveal.</p><p>The disclosure will put further pressure on the Reform UK leader, who is awaiting a decision by the standards commissioner over whether his failure to decl