Scientists have to list all the sources they use. And they quickly get called out for doing mistakes in that regard and suffer a loss of trust in their work.
What would happen if everything politicians say or write had to contain sources?
Speeches are prepared anyway, so you have to publish all the sources of your speech right after you held it. Saying things differently than in the source would be illegal.
I think it would be quite interesting, and a completely different way to do politics.
Politics is not science. A political decision does not rely on facts, it’s a moral decision or a jump into the unknown, or it is a arbitration, a choice to make on allocating resources or choosing a path for society.
Now there is a lot of lies and wrongs they’re saying, and it is a problem. But this is a problem with accountability and information. Media are a big problem. Political accountability and responsability is a big question and a difficult problem to solve. Science methods and knowledge can help, but they are not applicable for most of these problems.