That included a Monday joint statement from Republican Sen. Lindsey Graham and Democratic Sen. Richard Blumenthal calling Trump’s threat of ramped-up economic penalties if Russia doesn’t cut a peace deal in next 50 days “a real executive hammer to drive the parties to the negotiating table.”

Oil prices edged lower on Tuesday after U.S. President Donald Trump's 50-day deadline for Russia to end the Ukraine war and avoid sanctions eased concerns about any immediate supply disruption. Brent crude futures were down 15 cents at $69.

Russia launched four missiles and 136 drones into Ukraine overnight into Monday morning, according to Ukraine's air force.

President Donald Trump on Monday laid out a pair of steps intended to pressure Russia to end its war in Ukraine, including funneling new weapons to Kyiv and threatening economic punishment on Moscow if peace isn’t reached in 50 days,

Donald Trump has said Volodymyr Zelensky should not target Moscow after reportedly privately discussing strikes on the Russian capital with the Ukrainian leader and deliberating whether to send long-range Tomahawk cruise missiles to Ukraine, according to reports.

U.S. President Donald Trump's threat to choke off Russia’s oil revenue via secondary sanctions would deal a hammer blow to Moscow's finances, but markets are betting that the risk of higher energy prices will keep Washington from following through.

Asked if he trusted Putin, Mr Trump took a lengthy pause before saying: "I trust almost nobody to be honest with you.

For the fifth time, the American president has threatened Russia with economic sanctions. The first four times, Trump failed to follow through.