One thing you might experience or have been experiencing so far during the U.S. Summer months, is the slow down in responses, interviews, feedback, offers, etc.
Vacations (sometimes extended), conferences, travel, kids out of school, etc. often play a big part of that.
Sometimes you might have to wait an extra week or two to progress in the hiring process.
Follow up, but be patient, as other priorities may be at play.
“To lose patience is to lose the battle.” ~Mahatma Gandhi