Washington (CNN) -- Dick Cheney is certainly not one to hold back on how he really feels. George W. Bush, on the other hand, has been mum.
Despite their differing approaches to handling the post-White House years, their absence on the campaign trail has been obvious.
"The former president has been very quiet since leaving the White House in 2008, other than appearances related to fundraising and the establishment of his presidential library," said political analyst Bill Crane. "The vice president has primarily been visible on issues such as national defense and has traditionally not been the strongest fundraising draw."
Cheney also has been dealing with health troubles -- undergoing heart surgery in July and spending the bulk of his time since then recovering.
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