Whether the Equal Protections Clause is violated when there is a conflict amongst the federal circuit courts of appeal dealing with what a defendant is required to show in order to receive a new trial after newly discovered evidence is found, because a defendant in one circuit has a lower burden of proof than a defendant in another circuit, even though the rest of the circumstances are the same?

Whether the Equal Protections Clause is violated when there is a conflict amongst the federal circuit courts of appeal dealing with what a defendant is required to show in order to receive a new trial after newly discovered evidence is found, because a defendant in one circuit has a lower burden of proof than a defendant in another circuit, even though the rest of the circumstances are the same?