santorum would need three of four. while santorum today was talking about the virtues of possibility of a brokered convention, newt gingrich is out on the campaign trail in maryland talking about heading to tampa for the rnc convention. talking about making sure there is a conservative platform, not fighting for the nomination. shep? shepard: steve brown live in milwaukee. steve, thanks. an epic week in the battle of the network morning shows. katie couric filling in as co-host for archrival abc s good morning america or former archrival. she is with the abc net now. and former alaska governor sarah palin is taking couric s odd chair at nbc s today show. analysts say this could finally be the week that gma beats towed in the ratings after coming in second every single week since 1995. 800 weeks. it s an abc stunt no doubt. they hope it will work. gma also booked former president bill clinton. he was on today show. here is katie couric s reaction to the early wake-up time. it s a li