I’m Canadian and work on TN visa. I got my i-797b approval notice from Vermont center but for to get i94 needs go to port of entry and re-enter to US. How many percent chance do I have to get new TN visa( I-94) ? And which port of entry do you guess is easier? Buffalo , Blaine , Tijuana or somewhere else? My wife (she’s not Canadian citizen) also needs to get new TD visa, does she need to come with me to there or I can get it?