however, interviews with 28 strategists and officials show the assurances have not stopped the internal debate on whether biden will appear on the ticket. tomorrow marks the deadline for a requirement for all tsa employees to be vaccinated against covid, at the start of a busy travel holiday people. today transportation secretary pete buttigieg alleviating concerns that this deadline will impact americans traveling for thanksgiving this week. >> i have seen no indication that vaccine requirements are going to impact travel in any way, certainly in terms of our ability as a federal administration to provide the services that are needed. i can tell you, my agency, we see numbers approaching 99% of people have gotten it per the requirements. >> let's go to capitol hill with nbc's julie tsirkin joining us again. julie, there is still gop backlash for those lawmakers who supported the bipartisan