General Ord kept Governor Murphy in power but dissolved the state legislature. Republicans called a convention in Little Rock in April 1867 in order to discuss how Arkansas could return to the Union. Freedmen began to participate in politics through organizations such as the Union League, including registering blacks for the upcoming election. The election selected seventy delegates to a constitutional convention, composed primarily of Radical Republicans. The resulting constitution gave blacks full citizenship, due process, and the right to vote, as well as free public schools for all races and the establishment of the University of Arkansas. The document infuriated many conservatives and many thought it was a partisan document created for the benefit of the Republicans. The new constitution was approved in a corrupt election that also gave many offices to the Republicans. Ord certified the results, as did Congress over the president's veto, and the new Arkansas assembly ratified the 14th amendment, allowing Arkansas to reenter the Union on June 22, 1868.