Cheney should have distanced himself from this a long time ago - though in fairness he has done a pretty good job fending off the press on the issue. Personally I think he's being dishonest or has put family before principles on the issue
She has been involved in his public life without it being shoved down ones throat such as the 9/11 commemorations this year
Vice President Dick Cheney's daughter Mary Cheney (2nd R) and her partner Heather Poe (2nd L) hold their hands over their hearts as an honor guard with the U.S. flag walks past during ceremonies in memory of the victims of the September 11 attacks for members of the Bush administration and White House staff on the South Lawn of the White House in Washington September 11, 2006
Vice President Dick Cheney, accompanied by Mrs. Lynne Cheney and former Prime Minister Margaret Thatcher of Great Britain, attends a Service of Prayer and Remembrance at St Johns Episcopal Church in Washington, D.C., Monday, September 11, 2006, to commemorate the fifth anniversary of the September 11th terrorist attacks. White House photo by David Bohrer. Mary and Heather are in the row behind their parents in this photo - the profile family resemblance between Lynne Cheney and Mary is so noticeable in this photo.