Despite the current political playfield, one cannot deny the looming legal battles involving the former president, Donald Trump. Trump, known for his huge business empire and stint as a reality television star before his presidency, is now the subject of various court trials that have raised questions about his conduct both during and before his tenure.

Legal issues are no stranger to Trump but the ones knocking at his door today have a far-reaching impact not only on his personal life but also on his political career and indeed, the image of the presidency itself. The political opposition and much of public sentiment emphasize that The United States, as a role model of democracy, must adhere to the principle that no one is above the law, not even the president.

One ongoing case in which he is implicated involves allegations of illicit business conduct. This trial suggests a closer examination of his business holdings, with a major focus on possible instances of fraud. The prosecution argues a course of systemic financial misconduct within Trump's real estate empire. This case has the potential to reveal undisclosed financial improprieties that could influence opinion about Trump's celebrated business acumen.

Another key case bundled under the umbrella of Trump's court trials is the accusation of interference in the 2016 elections. As per this claim, Trump had an involvement in Russia's alleged campaign of disruption, a charge that rose to prominence during his presidency. The final verdict in this particularly high-profile case promises to have a substantial bearing on Trump's political legacy.

To add to his already full legal plate, Trump also faces scrutiny over potential obstruction of justice during his presidency. This case is part of the wider investigation into Trump's alleged efforts to impede the inquiry into his conduct and his campaign's involvement with Russia. Legal pundits have pointed out that this case could lay an unprecedented level of accountability on the office of the President.

While Trump leads his political rival, Kamala Harris, in terms of the US economy according to a Financial Times poll, these ongoing court trials threaten to overshadow his economic success. There is an undoubtable impact these legal situations will have in forming public sentiment. Lessoned trust within his voter base could prove a formidable challenge should he decide to run for office again.

In summary, these court trials present formidable challenges to Trump, his legacy, his future political ambitions, and bear an inherent questioning of presidential conduct. As legal proceedings continue, it's clear that the outcomes will be closely followed not just in the United States, but globally - serving as future reference points in assessing the extent and limits of presidential power.