While early speculation is that today's endorsement of G.O.P. presidential contender Mike Huckabee by Focus on the Family founder James Dobson threatens to divide the Republican Party, I see it differently. Looks to me as if Dobson has fired off the warning shot to frontrunner John McCain for the only way in which McCain will win the votes of the G.O.P. base: put Huckabee on the ticket. Having endorsed the Huckster, Dobson has positioned himself -- and others in the religious right -- to be able to endorse a McCain-Huckabee ticket come convention time. --Adele M. Stan