GBP/USD fell nearly 300 pips so far this week. Yesterday's Brexit headlines and today's (leaked?) weaker than expected CPI inflation figures for June were among the drivers on the GBP side of equation. Couple that with stronger USD since Fed Powell's testimony. 1.30 is the immediate support ahead of 50% retracement of the 2016 - 2018 upswing near 1.2930.