Donald Trump has no rival in the Republican ranks for the presidential nomination.
Trump won the Iowa caucuses with 51.1% of the votes, a historic win for a Republican candidate.
Ron DeSantis and Nikki Haley do not have enough strength and support to challenge Trump.
Trump has absolute control of his party.
Despite being involved in criminal proceedings, Trump can be a candidate.
Trump's possible return to the presidency brings concerns in Europe due to possible trade tensions and the isolationism it could introduce.
Conclusion: Trump's dominance and power within the Republican Party is undeniable, despite the legal challenges he faces. His potential return to power brings a host of concerns, particularly in Europe.