As their plan contemplated a strong independent executive who would not hesitate to use the far-reaching powers placed in his hands to defeat measures which he disapproved of, it was necessary to guarantee him against popular removal. In this respect again we see both English and American constitutional practice disregarded, since neither afforded the desired security of tenure. In the various states the governor was liable to be impeached by the lower branch of the legislature and expelled from office when convicted by the senate, which was usually the court before which impeachment cases were tried. A mere majority in each house was usually sufficient to convict,[118] and as both houses were directly elected,[119] it virtually gave the majority of the voters the power to remove. This was simply an adaptation of the English practice which allowed a majority of the Commons to impeach and a majority of the Lords to convict. That this had a strong tendency to make the legislative body supreme is evident, since the power, if freely used, would overcome all opposition on the part of either the executive or the judiciary. Any combination of interests that could command a majority in both houses of Parliament could thus enforce its policy. This practically destroyed the executive check in the English Constitution and for that very reason the founders of our government rejected it. They clearly saw that to make the President's veto effective, he would have to be protected in its exercise. To have adopted the English practice and allowed a mere majority of the Senate to convict in impeachment cases would have given Congress power to destroy the President's veto by impeaching and removing from office any executive who dared to use it. This was guarded against by making, a two-thirds majority in the Senate necessary to convict any official impeached by the House. And since this two-thirds majority is one which in practice can not be obtained, the power to impeach may be regarded, like the power to amend, as practically non-existent. Only two convictions have been obtained since the Constitution was adopted. John Pickering, a Federal district judge, was convicted March 12, 1803, and removed from office, and at the outbreak of the Civil War a Federal district judge of Tennessee, West H. Humphreys, who joined the Confederacy without resigning, was convicted. William Blount was acquitted in 1798 on the ground that, as a United States senator, he was not a "civil officer" within the meaning of the impeachment provision of the Constitution, and so not liable to impeachment. Samuel Chase, Associate Justice of the United States Supreme Court, President Andrew Johnson, and Secretary of War, William W. Belknap, would have been convicted but for the extraordinary majority required in the Senate.