Areason that lincoln feared that he might not be reelected in 1864 was that a) congress had failed to pass the emancipation proclamation. b) southerners did not generally approve of him as president. c) he did not seem to have a plan to end the war. d) democrats were divided on major national issues.

C) He did not seem to have a plan to end the war.

Lincoln seemed to not have had the chance to be reelected in 1864, because the Civil War was at a stalemate, and without progress, the US population would vote in favor of other presidents. However, the situation turned in Lincoln's favor, as the Union started to win battles shortly before the election, allowing Lincoln to run his second term.

hope this helps

The preamble of the constitution was written to explain the aim of the constitution