just a short time donald trump will meet with reince priebus about a party loyalty pledge. this is a pledge being sent to all the republican candidates promising to support the nominee, whoever he or she may be in 2016, and not to launch a third-party bid. but it's pretty safe to say even though all candidates are being asked to sign it, it's really just about that one guy right there. all about donald trump. cnn's chief political correspondent dana bash at trump tower in new york where at 1:30 today, the rnc comes hat in hand with a pledge saying, donald trump, please sign it. a lot riding on this meeting, dana. >> reporter: a lot is riding on this meeting, john, because sources familiar with this meeting and with donald trump's plans have been telling us since last night that he is planning to sign the pledge. that's the whole reason why reince priebus is leaving washington, taking the shuttle up to new york city, having a