The president can reject a proposed law through veto.
Legislative branches can check on the Executive branch by, override president's veto.
Yes, the power to check other government branches is a non-legislative power
To check the power of the Judicial and the Legislative Branches
By the power of the veto.
The president shares his or her power with the other branches of government, which is part of a system known as checks and balances. The legislative, judicial, and executive are the three branches of government.
Elections! We can choose our representatives. They can pass laws to check (to some extent) the judicial and executive branches. We also elected the president, who can to some extent, check the judicial and legislative branches. The three branches of government are theoretically equal in power; balance of power can help prevent abuse of power.
The United States Government is divided into three branches, Executive, Legislative, and Judicial.
The executive check over the legislative branch is the power of vetoing laws. The executive check over the judicial branch is the power of judicial appointment -- the president can pick a judge to take the seat of a judge who leaves the supreme court.
The President can veto bills passed by Congress, thus checking the Legislative Branch. The President checks the judicial branch by appointing Supreme Court justices.
veto
Because it will make the President and Congress compete for power
Both the Legislative (Congress) and the Judicial (Supreme Court), have the power to keep the President's power in check.