The Ronald Reagan Presidential Foundation threatened legal action Tuesday after an online auctioneer put what is purportedly a vial of the deceased president’s blood on the auction block. “If indeed this story is true, it’s a craven act and we will use every legal means to stop its sale or purchase,” said John Heubusch, the foundation’s executive director, in a statement. The vial’s seller claims that the blood sample in the test tube was taken at George Washington University Hospital after John Hinckley fired half a dozen shots at Reagan in March 1981 outside the Washington Hilton. In a letter, the seller claims that his mother worked with a company that contracted to do blood work for the hospital. Bidding online for the vial reached $14,500 Tuesday with two days to go in the auction.