The gap in Miller's House service was caused by his unsuccessful candidacy for the Louisiana State Senate in 1979, when he was defeated in his Senate bid by another Democrat, Ronald J. Landry, who served six terms from 1976 to 2000, having been unseated by the Democrat Joel Thomas Chaisson, II, a son of former Representative Joel Chaisson, I.<ref>{{cite web|url=http://senate.la.gov/Documents/Membership/1880membership.pdf|title=Membership in the Louisiana Senate|publisher=Louisiana State Senate|accessdate=April 8, 2017}}</ref> | The gap in Miller's House service was caused by his unsuccessful candidacy for the Louisiana State Senate in 1979, when he was defeated in his Senate bid by another Democrat, Ronald J. Landry, who served six terms from 1976 to 2000, having been unseated by the Democrat Joel Thomas Chaisson, II, a son of former Representative Joel Chaisson, I.<ref>{{cite web|url=http://senate.la.gov/Documents/Membership/1880membership.pdf|title=Membership in the Louisiana Senate|publisher=Louisiana State Senate|accessdate=April 8, 2017}}</ref> |