President Joe Biden said on Wednesday he had warned his Russian counterpart Vladimir Putin of unprecedented US sanctions should Russian troops massed on the border of Ukraine launch an attack. A day after talking for two hours by video link, Biden said Putin got “the message”. “I made it very clear if in fact he invades Ukraine there will be severe consequences, severe consequences – economic consequences like none he’s ever seen or ever have been seen,” Biden told reporters at the White House. But Biden added that sending US troops to confront Russia was “not on the table”. Adding…