GBP/USD breakout falters as Fed repricing lifts dollar

GBP/USD is testing its 1.3550-1.3570 breakout zone as fully priced Fed tightening, higher US yields and renewed dollar demand pressure sterling. A sustained break below 1.3550 would target 1.3450 and 1.3400; elevated UK gilt yields add volatility, but no clear new BoE or fiscal catalyst has appeared.