The Executive has the ability to veto bills brought to them by the Legislature. This is the most immediate means. His relationship with a political party also provides some control. But they can override him if they can get a 2/3rds majority to agree to something.
The legislature can check the power of the chief executive or president by overriding, approving and impeaching.
Impeachment
They check the laws made by legislature branch.
The other arms of government provide check for executive power. The legislature which makes laws and the judiciary which interprets the law provide a check for executive power.
Veto
Veto
They can declare laws unconstitutional and veto them.
Legislature can exercise the functions of executive but executive cannot exercise legislature functions. T.S.V. Diwakar Advocate & Arbitrator
To veto acts passed by congress :)
President vetos the bill
If I'm not mistaken, the three organ of the state are the legislature, the executive and the judiciary.
The legislature branch approves the justice chosen by the head of the executive branch.