Amidst talk about a joint Clinton-Obama ticket, all of which is coming from the Clinton campaign, at least a few bloggers and journalists have asked the question: if Clinton says Obama is unprepared to be commander in chief, how could she responsibly make him second in line for the job?

Today, on a conference call (still in progress), Howard Wolfson was asked that question and answered: “Senator Clinton would not choose any candidate who at the time of choosing has not passed the national security threshold.” But, he added, there is a lot of time between now and Denver.

When asked in a follow-up question if there was something Obama could do to prepare himself to pass that threshold before the end of the summer, Wolfson answered, “No, uh…it’s not something that I’m prepared to rule out at this time.”

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