Judicial review is the power of a court to examine a law, decision, or government action and determine whether it complies with the constitution or other higher legal rules.
If it doesn’t, the court can invalidate or overturn it.
A plea deal (or plea bargain) is a negotiated agreement in a criminal case where a defendant agrees to plead "guilty" or "no contest" to a charge, usually in exchange for a reduced sentence, lowered charges, or the dismissal of some charges. This process bypasses a full trial and is done between the prosecutor and the defendant.