(Bloomberg) — US tariffs are on the forefront as Donald Trump returns to the White House as well as the fallout from sactions against Russian oil. Meanwhile, a potential merger would create a mining powerhouse. Most Read from BloombergNYC Commuters Get New Way to Dodge Traffic: $95 Helicopter RidesScaramucci, Ackman Donate to Whitney Tilson’s NYC Mayoral RunWhat LA’s Fires Mean for the City’s Housing ShortageIn a City of Sprawl, Wildfire Evacuation Is Getting HarderWill Americans Ever Lose Thei