U.S. sanctions have already pushed the ruble to 2-year lows.
More than 70 percent of voters backed him in an election in which he had no serious challengers.
The prime minister's comments came after Trump signed a bill imposing new sanctions.
A leading opposition figure's video claims to expose the prime minister's corruption.
At least 41 people are dead after drinking a bath oil called Hawthorn.
BEIRUT -- Serious pressure is being applied to Putin to come down from the high wire along which he has warily trod until now, balancing Russia's Western-aligned elites on one hand and those concerned that Russia faces a real military and geo-financial threat from NATO on the other.
Border tensions and occasional skirmishes have been regular occurrences in the disputed territory since the May 1994 ceasefire agreement, but the recent clashes were the worst outbreak of violence in two decades.
Karen Dawisha on How Putin Views the West, Interview With Renowned Russia Expert and Author of Putin's Kleptocracy
Karen Dawisha is the Walter E Havighurst Professor of Political Science at Miami University in Oxford, Ohio. She is a world-renowned Russia expert who has written extensively about Soviet foreign policy, Russia-Middle East relations, and contemporary Russian politics.
Obama's Big UN Week Sunk by Putin's Clever Gambit, Iran's Cold Rebuke, and Multiple U.S. Policy Failures
We may look back on this week as one of the true nadirs in America's post-9/11 efforts to lead the world, a series of events that make the failures of America's shallow strategies, of both Republican and Democratic administrations. It is a particular low point for President Obama.
Having bullied Ukraine and sparking Western sanctions, Putin looked to China, hoping Beijing would bail him out of economic isolation. What he did not expect was the significant slowdown of the Chinese economy, which obviously tamed the dragon's appetite for carbohydrates.
MADRID -- The struggle for influence in Ukraine is a game that Putin cannot afford to lose. He gained the upper hand early in the crisis with the annexation of Crimea. Now, in eastern Ukraine's Donbas region, he is shrewdly forcing a divided and risk-averse West to choose between war and accommodation.