Which is the most likely reason that members of congress passes resolution

The answer is Trusted the president was obscuring the partition of forces set up by the constitution.  

Explanation:

The partition of forces gives an arrangement of shared power known as Checks and Balances. Three branches are made in the Constitution. The Legislative, made out of the House and Senate, is set up in Article 1. The Executive, made out of the President, Vice-President, and the Departments, is set up in Article 2.Montesquieu characterize the essential parts of the administration to be the Executive, Legislative, and Judicial. Aristocrat Montesquieu being a judge himself, plainly characterized the Judicial as being separate from the official and autonomous of the other two branches.