That’s what the reporting suggests:
Scoop: @realDonaldTrump was so unsure about @mike_pence that around midnight last night he asked top aides if he could get out of it
— Dana Bash (@DanaBashCNN) July 15, 2016
Sources tell me @realDonaldTrump was on phone till midnight making calls, asking if he could change course on VP pick
— Kelly O'Donnell (@KellyO) July 15, 2016