Taxation and debt are the themes of this era, both in China and the United States. Trump waved a tariff stick, cut government spending, and forced drug prices to fall. The purpose of the tax reduction bill is to make the economic growth pie do more tax can be collected more, and implement the stable currency bill to find new buyers for US debt; Dongda issued ultra long term treasury bond and special debt to replace local debt, and recently collected overseas income tax (expanding new tax sources) that had existed before but never really implemented. China is learning from the direct tax of the United States (foreign income tax has a slight shadow of capital gains tax), and when companies and residents are unable and unwilling to increase leverage, the government shoulders the banner of leverage (after the financial crisis, the US government shoulders the banner of leverage); The United States is learning from China's efforts to reduce costs and increase efficiency. The US version of "centralized procurement of pharmaceuticals" (an administrative order to lower drug prices) does not have new tax sources domestically, so it seeks to supplement them externally. Can we balance the core or revenue and expenditure lines? Can the deficit be reduced if it cannot be balanced? Recall that in the first half of 23 years, when the US government last attacked the debt ceiling, Yellen proposed a bold plan: to raise the ceiling of US treasury bond from $31.4 trillion to $51 trillion, and the new ceiling will be valid until 2033. At that time, the market thought she was going crazy, but now looking at the US Treasury growing by another 50%, the volume would exceed $51 trillion.