Johnson 's trial began in late March . With a predominantly Republican Senate , Johnson 's impeachment seemed to many a foregone conclusion . However , throughout the process , several senators began showing hesitance to remove the President from office . Stanton , meanwhile , had remained barred in the War Department 's headquarters for weeks , sneaking off once in a while to visit his home . When it seemed to Stanton that Johnson would not remove him forcefully from office , he began spending more time at home . Stanton watched closely as the trial , which he was convinced would end with Johnson 's conviction , continued for several months . When it came time to vote , 35 voted to convict , 19 to acquit , falling one short of the 36-vote supermajority needed for a conviction . The remaining proceedings were delayed for several days for the Republican National Convention . On May 26 , after Johnson had been acquitted on all of the ten other charges , Stanton submitted his resignation to the President
Republican National Convention
1868 Republican National Convention
Edwin Stanton