Core Viewpoint - Deutsche Bank warns that the biggest threat to the US dollar may stem from the US government's own fiscal situation, with the fiscal uncertainty index reaching a historical high due to ongoing disputes over tax reform and budget deficits [1][4]. Group 1: Fiscal Situation and Debt Market - The US fiscal uncertainty index has surged to a historical high, primarily driven by continuous debates surrounding tax reform, fiscal deficits, and long-term budget outlooks [4][6]. - Despite a relatively strong economic backdrop, the US fiscal deficit remains exceptionally large and unsustainable, contradicting historical patterns where deficits correlate with high unemployment rates [4][6]. - Investor interest in US Treasuries is waning, as evidenced by the 30-year and 20-year Treasury yields both surpassing 5%, yet the latest 20-year Treasury auction results were disappointing, indicating a quiet withdrawal of foreign capital [3][6]. Group 2: Domestic vs. Foreign Investment - Historically, foreign investors have been the primary buyers of US Treasuries, and if this trend of withdrawal continues, the question of who will step in to purchase these bonds becomes critical [6][7]. - Domestic institutions may be incentivized to buy US Treasuries due to high yields, but their holdings in the Treasury market have significantly decreased compared to decades past, and they are less sensitive to US fiscal deficits than foreign investors [7][9]. - Even if domestic investors increase their Treasury purchases, it may not prevent the dollar from weakening, as they lack sufficient overseas assets to offset the outflow of foreign capital [7][11]. Group 3: Market Dynamics - Domestic institutions currently hold a historically high position in the stock market, and any significant shift towards increasing Treasury allocations would likely require them to reduce their stock holdings, potentially leading to a chain reaction in the markets [9][11]. - Overall, while domestic institutions may find opportunities in US Treasuries, the ongoing withdrawal of foreign investors poses a clear downside risk for the US dollar [11].