MOSCOW (Reuters) -The Kremlin on Wednesday pushed back at U.S. President Donald Trump's warning that the Russian economy was going to collapse, saying that Russia had considerable reserves and was strong enough to allow President Vladimir Putin to achieve his goals. Trump on Tuesday said that Putin should settle the war in Ukraine which was making Russia look bad. Kremlin spokesman Dmitry Peskov said he did not want to comment on Trump's remarks about Russia but that Putin was open to searching for a way to end the war and that Moscow was grateful to Trump for his efforts.