ESTA application , dual national
Hi,
I've traveled to the US on multiple occasions on my Spanish passport. Last year I became British and now I hold both passports and I was wondering when applying for a new ESTA should I use the Spanish passport or can I use my new British passport without any issues ? I know on the form it will ask me if I hold any other passports and since I live in the UK I'd rather carry just one passport with me , in this case the British one
thanks