Oil market momentum was kept in check on Monday as prices fluctuated in and out of negative territory, with traders on edge despite the U.S. pulling back from initial sanctions threats against Colombia,

Russia’s president flattered his American counterpart as “smart” and “pragmatic,” and repeated Mr. Trump’s baseless claim that the 2020 election was stolen.

On his third day in office, U.S. President Donald Trump threatened to tighten sanctions on Russia if it does not move toward a peace deal with Ukraine. Here’s how the Kremlin responded, and what analysts are saying about the warning.