The senator was charged with money laundering and tax evasion, and was also banned from leaving France.
He will run for the sixth time.
Kerimov's detention is connected with suspicion of tax evasion for property on the Cote d'Azur in France, write Reuters and the Financial Times.
Alexander Babakov manages to conduct business in Ukraine, being a Russian senator.
It sounds like an ultimatum: if the Bank of Russia does not withdraw $109 billion invested in US debt obligations and does not transfer them to securities in Europe and China, the Federation Council will have to go back to the question of its nationalization.