I am from Germany and plan to travel to the USA later this year. Following the current administration's questionable immigration and travel policies, I have concerns that I might get into trouble when I try to enter the USA because I have been to China a few years back. This is, of course, reflected by the stamp in my passport.
Should I get a new passport just to be safe?
Could this cause problems when applying for a tourist visa?
And is there anything else regarding my passport that I should know when entering the USA (is biometric data necessary?)?