Do you think nafta should be eliminated or modified or kept as is and why?

Kept as is because it stands for North American Free Trade Agreement.
If you where going to change it, put periods between the letters. But I would leave it.

Definitely leave it there are better way to make jobs through tax incentives and lowering certain taxes than throwing away a good program not only does this hurt Mexico if we throw it out it hurts Canada. and we are strong trade partners and allies to Canada it just wouldn't be a good strategic move.