Article continues below advertisementWillie Geist has some regrets about not helping Jenna Bush Hager after her April Fools' Day prank went awry.During the Thursday, April 2, episode of TODAY With Jenna & Sheinelle, the guest co-host, 50, apologized for not coming to his friend's aid after she fell on the floor.On Wednesday, April 1, Bush Hager, 44, planned on bringing out a fake $20,000 cake to trick her costar. She purposely dropped the dessert on the ground, but she did not intend to slip on the icing.