Which re-issued song did Taylor Swift produce with Nathan Chapman and Dann Huff?
State of Grace (Taylor Swift song):  It was the only promotional single from the album that was not re-issued as an official single, as "Begin Again", "Red", and "I Knew You Were Trouble", were all later re-issued as official singles. Begin Again (Taylor Swift song):  Swift co-produced the song with Nathan Chapman and Dann Huff.
Begin Again