Earlier quoted context omitted.
I'm sure we both know that voters vote for representatives, not laws, so that question is not applicable. But in general, there has been popular support for things like "patriot act", and wars, as measured in polls.
There has also been even more support for the opposite, so that's just more sophistry.
Wars did get less popular when they went badly, so you can argue that they would have been shorter if public officials would have retreated when polls turned against them. But that's a separate discussion.