The Euro opened with gap lower against the dollar on Monday after the greenback was boosted by progress in US tax cut plan over the weekend.
This also suggests more aggressive US rate hike, as Fed is meeting next week for the last time this year and markets widely expect the central bank to further raise interest rates.
The pair accelerated to fresh session low at 1.1836 (4-hr cloud base) at the beginning of European trading, after holding within narrow range in Asia.
Fresh weakness broke below initial support provided by rising 10SMA (1.1856) and pressuring daily cloud top (1.1833) which marks next pivotal support.
Technical studies on lower timeframes turned to bearish mode and signal further easing, as negative sentiment is growing.
Key supports lay at 1.1808 (30 Nov trough) and 1.1805 (Fibo 38.2% of 1.1553/1.1961 ascend), with sustained break here to complete failure swing pattern on daily chart and generate stronger bearish signal.
Bearish extension below 1.1805 would look for test of 1.1757 (Kijun-sen / 50% retracement) and 1.1709 (Fibo 61.8% of 1.1553/1.1961).
The upside should stay protected by hourly cloud (spanned between 1.1870 and 1.1890).

Res: 1.1875; 1.1890; 1.1940; 1.1965
Sup: 1.1836; 1.1805; 1.1780; 1.1757