The SEC has encountered legal challenges in its efforts to classify digital assets as securities. A recent ruling by a federal judge in the Tron case denied the SEC's request to file additional responses, highlighting difficulties in its argument that digital assets themselves are securities. This follows ongoing discussions about the SEC's approach, particularly in the Kraken lawsuit, where California courts have rejected the blanket classification of tokens as securities. The SEC's stance faces scrutiny as it struggles to substantiate claims of investment schemes involving digital assets.