...begin. From Politico, "GOP Pros Fret Over Paul Ryan" (my emphasis):
Away from the cameras, and with all the usual assurances that people aren’t being quoted by name, there is an unmistakable consensus among Republican operatives in Washington: Romney has taken a risk with Ryan that has only a modest chance of going right — and a huge chance of going horribly wrong.
In more than three dozen interviews with Republican strategists and campaign operatives — old hands and rising next-generation conservatives alike — the most common reactions to Ryan ranged from gnawing apprehension to hair-on-fire anger that Romney has practically ceded the election.
It is not that the public professions of excitement about the Ryan selection are totally insincere. It is that many of the most optimistic Republican operatives will privately acknowledge that their views are being shaped more by fingers-crossed hope than by a hard-headed appraisal of what’s most likely to happen.
And the more pessimistic strategists don’t even feign good cheer: They think the Ryan pick is a disaster for the GOP. Many of these people don’t care that much about Romney — they always felt he faced an improbable path to victory — but are worried that Ryan’s vocal views about overhauling Medicare will be a millstone for other GOP candidates in critical House and Senate races.