It certainly skips around Lincoln's unconstitution actions prior to and during the war.
Related article from GOPCap: Lincoln's Unconstitutional Suspension of Habeas Corpus - an analysis of an impeachable offense (Bonus entertainment value: Wlat has some old posts on this one)
Yessireebob, Lincoln's actions were unconstitutional because GOPCapitalist said so. Glad we cleared that little matter up.