It is very uncommon, in fact extremely rare when one compares the total number of cases the Supreme Court has heard with the number of cases the Court has declared a law unconstitutional. Courts will give a certain amount of deference to laws and consider them constitutional unless proved to be unconstitutional.
Yes, the federal courts can declare legislation passed by Congress and signed by the President unconstitutional, but someone who has standing to challenge the law must file a suit first (the Supreme Court can't just pluck a bill off the President's desk and start critiquing it). In order to have standing, an individual must be personally, directly and negatively affected by the law in a significant way and there must be an issue that can be remediated by a court. Not all legislation lends itself well to judicial review.
No
Determine whether a president's actions violate the constitution.
One power would be judicial review, which the supreme court uses to not only declare laws unconstitutional, but also the actions of the President or Congress. Another power would be the ability to interpret the constitution.
When President proposes a bill, a congress (both House and Senate first have to approve it. Then the president can sign the bill into law or veto it. If he vetoes it, Congress can override the bill and make it a law. The Judicial branch, though, can declare it unconstitutional. War, or Treaties- President can make treaties and send troops, but Congress have to approve the treaty and war.
The president sends the name of a candidate for the Supreme Court to congress and they decide if he / she gets the job. With an ambassador he doesn't need approval to appoint someone to the post.
supreme court
Veto
Protect citizens from being tired under unconstitutional laws Apex
No
Determine whether a president's actions violate the constitution.
One power would be judicial review, which the supreme court uses to not only declare laws unconstitutional, but also the actions of the President or Congress. Another power would be the ability to interpret the constitution.
They can declare executive acts unconstitutional
Federal Courts can nullify Presidential directives if they are unconstitutional. Congress can remove a President if he fails to support the Constitution.
The Supreme Court has the unwritten policy of judicial review. This means that they can check amendments and bills that the other two branches of the federal government suggest. If a law seems to be unconstitutional, and not written in the constitution, the Supreme Court can decide it is unconstitutional.
This would essentially put the supreme court under the president and let him decide the constitutionality of laws if Congress agreed with him. However if the opposition controlled Congress, the president might fire the whole court and Congress might refuse to confirm his new appointments and chaos would result.
If the president and the vice president die or become incapacitated simultaneously or in any way that prevented the nomination of a new vice president, the speaker of the house is next in the line of succession. While this has never happened, and some believe it is unconstitutional to have a technically unelected president, the 20th amendment gives Congress the power to decide who is next in succession after the vice president, and the law they passed to decide it is the Presidential Succession Act of 1947.
The Supreme Court is the head of the judicial branch of the government and has the responsibility to enforce the Constitution. If legislation is found to be unconstitutional then it is overturned.