McCain is behind in the polls, still lacking a central theme for his candidacy and shuffling his senior campaign advisors to try to assemble a stronger team.

CNN: Obama bets big with 50-State Strategy

That, essentially, is the same program advocated by Bush -- at least so far as can be determined from his public statements and statements by his campaign advisors.

CNN: Bush's missile defense plans may be indistinct from Clinton-Gore's

Tyson, who has chaired the White House Council of Economic Advisors, said the proposed environmental organization was one of several under consideration by the Gore campaign.

CNN: Gore adviser proposes global environmental watchdog