The sixth amendment ensures a citisend right to

a right to a fair jury and a speedy trial

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.

a. by accepting the election of president abraham lincoln in 1860 and convincing other southern states to do the same