WASHINGTON — President Trump told The Post Friday that he knew Israel would strike Iran if the theocratic regime didn’t quickly agree to a revised nuclear deal with the US. “I always knew the date,” the president said in a brief phone interview. “Because I know everything. I know everything. I know everything. “I gave them 60 days and they didn’t meet it,” Trump went on. “Today’s 61, you know. Today’s day 61.” The president had never publicly revealed the 60-day deadline — though its existence had been reported by Israeli media — until after Israel launched Thursday’s attack, and...