I'm flying to the US in order to participate in a startup acceleration program for 90 days from September. I have an Israeli and German passport.
If I use my German passport in order to enter the US (I've already confirmed it by ESTA, and I've been to the US in May this year), I will have to leave the US in order to reset the VWP.
It's important to add that in the middle of September I will come back home for a family wedding.
What will be the best practice:
Using my German passport with the VWP to enter the US in both times. I'm just not sure my VWP will be reset from flying back home for 4-5 days. If no - it will make me stay in the US more than 90 days and that's something I don't want to.
Try to obtain a visa for Israel's citizens which - if granted - will give me the ability to stay in the US for 6 month by default. My only concern is that I will not receive the visa and that it will hurt my ability to use the German passport and the VWP program.
It's a very specific issue but I'm confused.