Which was the main provision of the Wade-Davis Bill of 1864 that led Lincoln to "pocket veto" it?

The wade-Davis Bill of 1864 was a bill proposed for the Reconstruction of the South written by two Radical Republicans. The bill made re-admittance to the Union for former Confederate states contingent on a majority in each Southern state. The bill passed both houses of Congress on July 2, 1864, but was pocket vetoed by Lincoln and never took effect. The Radical Republicans were outraged that Lincoln did not sign the bill. He believed it would be too difficult to repair all of the ties within the Union if the Wade-Davis bill passed.