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 little strange truth be told. i'm a bit nervous my heart is