Source text: Daisy Cooper, Deputy Leader of the UK's Liberal Democrats, has urged the Financial Conduct Authority (FCA) to investigate potential conflicts of interest involving Nigel Farage, leader of Reform UK, in relation to cryptocurrency activities. Cooper highlighted that Farage invested approximately £215,000 in Stack BTC weeks before participating in a promotional video and executing a £2 million Bitcoin purchase on behalf of the company. She expressed concerns that this sequence of investing, promoting, and purchasing could pose market abuse risks and mislead retail investors. Cooper also noted Farage's long-standing public support for expanding cryptocurrency use, including proposals for a Bitcoin reserve fund and advocating for the UK tax authority to accept crypto assets for tax payments. The call for investigation aims to ensure transparency and protect investors from potential misinformation or financial harm. Target language code: es Translation instructions: This is the news article content. Please maintain the original meaning.