Which of the following statements most accurately characterizes the movement toward emancipation within the Republican Party in 1862? 1- Lincoln led the Radical Republicans, who wanted to speed up the process of emancipation by abolishing slavery throughout the South. 2- Mounting Union casualties diminished popular support for emancipation, forcing Lincoln to slow his schedule for freeing slaves. 3- Radical Republicans in Congress pushed moderates toward abolition. 4- Republicans were afraid that if they did not strongly support emancipation, northern Democrats would use their hesitancy against them in the upcoming elections.