Translation:Politics is full of lies and hate today.
We follow the rules for adverbs of time presented, for example, here https://www.ef.com/english-resources/english-grammar/adverbs-time/ They do not mention of any possibility to place it after the verb.
Interesting. I also did not realize we had so many rules. Most of these ring true to me. However, I think it would be perfectly OK to say "Politics is now full of lies and hate." So, "Politics is today ..." sounds only slightly strange. I think it emphasizes the adverb even more strongly than the other possibilities, perhaps because it is in a less usual place.