MARSHALLTOWN, Iowa (AP) – Bernie Sanders found himself on the receiving end of attacks from both President Donald Trump and Elizabeth Warren on Sunday. It’s a reflection of his rising status in the Democratic presidential race and perceived momentum just three weeks out from the Iowa caucuses.

Trump issued a tweet in which he called Sanders “Crazy Bernie Sanders.” But it was Warren who offered the sharpest criticism of the Vermont senator, saying she was “disappointed” by a report that the Sanders’ campaign is instructing its volunteers to speak negatively about her to win over undecided voters and suggesting he is too divisive to beat Trump.