GBP/USD hits a new five-week low of 1.2672 before rebounding above 1.2700.Technical outlook: Bearish momentum with first support at 1.2700, followed by 100-DMA at 1.2683 and 200-DMA at 1.2648.For bullish reversal, GBP/USD needs to surpass 50-DMA at 1.2783, targeting 1.2800 and 1.2900. On Tuesday, th