Johnson's opponents in Congress were outraged by his actions; the president's challenge to congressional authority—with regard to both the Tenure of Office Act and post-war reconstruction—had, in their estimation, been tolerated for long enough.
Expressing the widespread sentiment among House Republicans, Representative William D. Kelley (on February 22, 1868) declared: Sir, the bloody and untilled fields of the ten unreconstructed states, the unsheeted ghosts of the two thousand murdered negroes in Texas, cry, if the dead ever evoke vengeance, for the punishment of Andrew Johnson.
On February 24, 1868, three days after Johnson's dismissal of Stanton, the House of Representatives voted 126 to 47 (with 17 members not voting) in favor of a resolution to impeach the president for high crimes and misdemeanors.
The impeachment of Andrew Johnson was initiated on February 24, 1868, when the United States House of Representatives resolved to impeach Andrew Johnson, 17th president of the United States, for "high crimes and misdemeanors", which were detailed in eleven articles of impeachment.