The Immigration and Naturalization Service (INS) v. Chadha was a US Supreme Court ruling enacted in 1983 which declared that the one-house legislative veto had violated the principle of division of powers included in the US Constitution.
The Congress is not allowed to promulgate a statute that grants to itself the power of exercising a legislative veto over goverment actions, because such enactment is inscosistent with the bicameralism principle that governs the legislative branch of power in the US.
<u>Moreover, the Congress had undertaken an adjudicative and not a legislative action and is exceeding the powers reserved to the legislative branch</u>and it is violating the so-called anti-aggrandizement principle.