The odd recent trend in the US dollar

The US dollar has appreciated against all currencies since the start of 2018. However, there should now be concern about: The expansionary US fiscal policy , which will lead to an increase in the US external deficit; The effect of protectionism on the US economy (rise in the price of taxed imported products, leading to a loss of purchasing power); The real estate bubble in the United States. Why is the dollar appreciating despite the threats overhanging the United States? Because of the rise in dollar interest rates relative to other currencies; Because rising risk aversion gives the dollar its role of safe haven currency, even when the rise in risk aversion is due to events in the United States.