FILE - In this Oct. 6, 2011 file photo, former Vice President Dick Cheney is seen in Washington. Cheney got last-minute medical clearance to speak at the Wyoming Republican state convention in Cheyenne on Saturday April 14, 2012. State GOP Chairwoman Tammy Hooper says the speech Saturday will be Cheney's first public engagement since he got a heart transplant three weeks ago. (AP Photo/Manuel Balce Ceneta, File)