What limits are placed on the supreme court to ensure it never possesses too much power?

The Constitution has limited the Supreme Court to handling "controversies" and "Cases" only. That is which the Court should not give advise or opinions; rather it is limited to giving decisions on cases at hand. The Court Justices must exercise discretion especially that there are over 6000 cases file in court each year.

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov

when arthor pulls out the sword

explanation:

becase he becomes !