• GBP/USD trades in the negative territory around 1.2700 in Monday’s early European session. 
• The negative outlook of the pair remains intact below the 100-day EMA, with a bearish RSI indicator. 
• The first downside target to watch is the 1.2600 psychological level; the immediate resistance level is seen at 1.2834. 

The GBP/USD pair tumbles to near 1.2700 during the early European session on Monday, pressured by the firmer US Dollar (USD) broadly. The US President-elect Donald Trump's tariff threats, the rising geopolitical tensions in West Asia and the rising expectation for less aggressive Fed rate cuts support the Greenback and act as a headwind for GBP/USD. The release of US ISM Manufacturing Purchasing Managers Index (PMI) data will be the highlight on Monday. 

Technically, the negative view of GBP/USD prevails, with the price holding below the key 100-day Exponential Moving Average (EMA) on the daily chart. The downward momentum of the major pair is reinforced by the 14-day Relative Strength Index (RSI), which stands below the midline around 44.40. 

The initial support level for GBP/USD emerges at the 1.2600 psychological level. Sustained bearish momentum could drag the major pair to the lower limit of the Bollinger Band at 1.2445. A break below this level could push prices lower toward 1.2331, the low of April 23.