There is no Belarusian law which says that a presidential inauguration ceremony should be conducted in any specific manner. Lukashenka’s inauguration did not violate any Belarusian legislation.
The New York Times report on Donald Trump’s tax returns admits that there are no financial ties between the US president and Russia.
This proves that the Russiagate narrative is thoroughly discredited, and no one in their right mind is paying attention to CIA statements about “Russian influence” any longer.
The NYT report analysing President Trump's tax returns does say that the documents do not "reveal any previously unreported connections to Russia" [emphasis added]. This does not contradict the January 2017 findings of the US intelligence community or the Special Counsel investigation. In the course of the latter, the office of Special Counsel Robert Mueller "issued more than 2,800 subpoenas; [...] executed nearly 500 search-and-seizure warrants; [...] obtained more than 230 orders for communications records; [...] and interviewed approximately 500 witnesses, including almost 80 before a grand jury" (Mueller report, p. 13), and concluded that Moscow had "interfered in the 2016 presidential election in sweeping and systematic fashion" (p. 1). See here for a summary of the report's findings.