Looks to test the 1.3000 level.
The GBPUSD has moved sharply lower on the back of the votes and the pair is now (as I type) testing the 200 day MA at 1.2978.. The price did move below the 1.3002-04 level. That is now a close risk level. Stay below keeps the sellers in control. On the downside the low from March comes in at 1.2959.
Below those levels, traders will be focused on the 100 day MA at 1.29205 level. The 50% of the move up from the January low comes in at the area as well. That is the magnet for the pair after a break of the 200 day MA and March low.