New Delhi, Aug. 18 -- US Senator Lindsey Graham has made a startling claim over Russian President Vladimir Putin's visit to Alaska during which he held a talks with Donald Trump over ongoing war with Ukraine.

"The only reason Putin came to Alaska was because Trump threatened a 50% tariff against India for buying Russian oil and gas," claimed Graham.

The South Carolina Republican further added that if they go after Russia's oil customers and tell them to choose between the US economy and cheap Russian energy, they would pick the American economy.

Speaking to Fox News' Sunday Morning Futures, Graham said, "My advice to President Trump and [Secretary of State Marco Rubio] is, you've got to convince Putin that if this war doesn't end justl...