Should it be illegal for politicians to lie?

My country plans to make it illegal for politicians to lie. Whether or not it it will be a civil or criminal matter and the penalty is yet to be decided. Unsurprisingly, some politicians aren't so keen on the idea. The ban won't affect England or Scotland, where politicians will be able to continue the tradition of being lying twats.

But would such a law work elsewhere? Say America where misinformation is a bigger problem?
Should it be illegal for politicians to lie?
Should it be illegal for politicians to lie?
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