For the remainder of the Civil War, Morton made efforts to keep Indiana secure by suppressing elements he saw as anti-union or sympathetic to the South. The searches, arrests, and even disruption of the Democratic State Convention (in what would later be called the Battle of Pogue's Run) earned Morton much criticism and was called a "dictator" and "underhanded mobster". As the war ended and the Republican Party received an overwhelming majority in the government, Morton's questionable conduct during the war were made moot and he continued to serve a second term in the US Senate until 1877.