Rubuta ci gaba ga wannan sakin layi - Bayan wa'adinsa ya ƙare a 1865, Armstrong ya koma Cleveland, ya sayi "The Plain Dealer", kuma ya shirya shi har 1883. A shekara ta 1868 ya yi shaida a shari'ar tsige Shugaba Johnson. Ya kasance wakili ne a majalisun majalisa na Democratic a 1868, 1880
, da kuma 1884.