Why was congress unwilling to give the president the power to veto bills?

Congress was not unwilling to give the President the veto power. Certain members of the Constitutional Convention were. Congress, as we know it today, did not write the Constitution. Some Framers of the Constitution did not favor the veto power, fearing it gave the President too much power of the legislative branch. In fact, many Framers felt the President should simply be an agent of the Congress subject to its direction and control.