Tsereteli was the first of the major exiled politicians to arrive in Petrograd after the revolution, and thus was welcomed by a large crowd at the train station. Immediately, Tsereteli went to the Petrograd Soviet and gave a speech in support of the revolution, but warned members that it was too early to implement socialist policies. At the time of his arrival, there was no clear leadership of the country, with both the Petrograd Soviet and the Provisional Government claiming authority. The Soviet, composed of representatives of workers and soldiers, enjoyed popular support, though it was not regarded as a government. In contrast, the Provisional Government claimed it was the legitimate governmental successor to the Russian Empire, but did not have the support of the people. Each thus needed the other to legitimize their claim. This system, later dubbed "dual power", was highly inefficient, though neither side wanted to upset the balance lest they lose their power.