What happens to Donald Trump's criminal cases after he becomes President? Can he pardon himself?

<img border="0" hspace="10" align="left" style="margin-top:3px;margin-right:5px;" src="https://timesofindia.indiatimes.com/photo/115013921.cms" />Former US President Donald Trump is facing multiple criminal charges, including federal and state cases. A potential second term could impact these cases, potentially halting or dismissing some due to legal complexities and potential presidential immunity. The possibility of a self-pardon, while legally ambiguous, adds another layer of complexity to the situation.