Testing requirements are still in place for those in close proximity to the president and passengers aboard Air Force One, including for the upcoming trip to India. But the stringent monitoring that prevailed in the early days of the administration has eased significantly.
The vaccine won't stop it. That was a lie fed to people to make them accept the removal of all other precautions, but it became clear very quickly that while the vaccines were effective at preventing death and severe illness, they were never able to prevent infection well enough to stop the spread. Maybe a future generation of vaccines, but that's useless until those actually exist.