Donald Trump was blatantly lying on Saturday when he claimed credit for lower insulin costs, according to Joe Biden’s campaign. The former president over the weekend took to his own social media network, Truth Social, to proclaim that he is the one who got millions of Americans low insulin pricing. “Low INSULIN PRICING was gotten for millions of Americans by me, and the Trump Administration, not by Crooked Joe Biden,” Trump wrote Saturday. “He had NOTHING to do with it. It was all done long before he so sadly entered office. All he does is try to take credit for things done by others, in this …