In 1848, he moved to Raleigh and became head of the North Carolina Bar, succeeding then United States senator George E.
[8][9] In that same year, Moore was appointed Attorney General by then Governor William Graham to replace Edward Stanly who had resigned.
A Unionist,[11][12] he staunchly and vocally opposed succession believing it was unconstitutional and detested the proposition of going to war, pleading to the public in letters to the press to keep the Union intact.
[14] When a judge required attorneys coming before the newly formed Federal court to plead oath to the Confederate States, Moore gathered his belongings and walked out.
[10] In 1865 after the end of the war, President Andrew Johnson invited Moore, former governor David Swain and former attorney general William Eaton to Washington to consult about North Carolina and Reconstruction efforts.
Moore was also elected to the North Carolina Constitutional Convention, called by Governor William Holden, representing Wake County.
[5] Major exceptions were interracial marriage was explicitly illegal and no provisions for the right to serve on juries or vote.
[17][16] Moore was indignant when Richmond Pearson other justices of the North Carolina Supreme Court vocally supported the Republican Party, printing pamphlets encouraging people to vote for Ulysses Grant and making stump speeches warning violence might ensure from blacks against whites unless whites voted Republican.
[7][20] In his will he wrote: "No man suffered greater misery than I did as the scenes of battle unfolded the bloody carnage in the midst of our homes.