What story are the lives and ministries of John the Baptist and Jesus repeating?
The lives and ministries of John and Jesus are not repeating a story.
John was sent in the ‘spirit and power of Elijah’ to prepare the way for Jesus’ ministry.
Luke 1:17 He will also go before Him in the spirit and power of Elijah, ‘to turn the hearts of the fathers to the children,’ and the disobedient to the wisdom of the just, to make ready a people prepared for the Lord."
Their relationship is perhaps foreshadowed by Elisha following on from Elijah, but I am unable to determine any ‘repetition’.