I have 2 questions for my mom's tourist visa. Thank you in advance to those who can help.
1. Her tourist visa expires September 2022, can she still travel to the US from January 2022 to February 2022?
2. We started the visa renewal process. We paid the fee, finished the DS-160, but we didn't see the Interview Waiver Letter and we have not sent anything else to the embassy. We have not set an appointment yet. If she travels to the US next month (Jan 2022), would there be an issue if we already started the visa renewal process?