David Wilmot proposed the Wilmot Proviso in 1846 which would ban slavery in the new lands. However, this was shot down to much debate. Increasingly, the northerners became more polarized against slavery. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
The function of the america after world war 2 was sad about how they paid there debts