Walker and the Refusal to Rule Anything Out
Walker didn’t explicitly endorse doing that, but he thought it was crucially important not to rule it out, because for him there is apparently no course of action so unwise or unnecessary that it should be rejected immediately. This later tripped him up when he was asked if he favored a “full-blown re-invasion of Iraq and Syria,” which he also refused to rule out. I have said before that Walker doesn’t want to rule things out because he hasn’t given much thought to the positions he has taken as a candidate, and that’s probably a main reason why he doesn’t know how to articulate or defend those positions very well.
.. Walker has to do this because he isn’t prepared to be a national candidate and doesn’t know how to cope with the scrutiny that goes with running for president.