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US Government Shutdown Reflects Deepening Political Polarisation

By:
Eiko Sievert
Updated: Oct 2, 2025, 19:40 GMT+00:00

The latest US government shutdown occurred as a result of policy disagreements between Republicans and Democrats on issues such as healthcare, but it reflects deepening political polarisation.

Donald Trump. FX Empire

The US administration’s increasingly unconventional policy approach has placed pressure on the long-standing checks and balances of the US governance system and is seen as credit negative for the US sovereign rating outlook (rated AA by Scope Ratings (Scope) with a Negative Outlook).

In recent months, questions about the independence and credibility of key institutions have intensified. The Federal Reserve has faced growing political scrutiny, culminating in the attempted dismissal of Governor Lisa Cook, and testing the boundaries of presidential authority with respect to the oversight of independent institutions.

Similarly, legal professionals and firms perceived as adversarial to President Donald Trump’s policy objectives have been subjected to public pressure, while concerns have also emerged around the impartiality of economic data following the dismissal of Erika McEntarfer, the former Commissioner of the Bureau of Labor Statistics.

Broader Challenges Emerge

Broader challenges have arisen from the heightened criticism of academic institutions and the press, which risk eroding public trust in the country’s system of checks and balances. Of additional concern is the increasing normalisation of military deployments in American cities, with the stated aim of preserving public order. Civil authority could particularly be undermined when such deployments become more frequent even without state governors’ consent.

Overall, this deterioration in governance standards is set to further increase political polarisation in the years ahead. The deeper these political divisions become, the greater the risk that key policy compromises may not be reached by the relevant deadlines.

Increase in Debt Ceiling Likely Needed by 2028

This also applies to future debt-ceiling standoffs, particularly if the Republican Party were to lose control of the House of Representatives and/or the Senate after the 2026 mid-term election. Despite a USD 5trn increase in the debt ceiling agreed as part of the ‘Big Beautiful Bill’, a further increase will likely be needed by 2028 given the weak fiscal outlook.

Scope expects general government deficits to average around 6% of GDP and an increase in general government debt to 127% of GDP within the next five years. The rating agency believes the risk of a technical default by the US due to political disputes is not very likely, but this risk continues to increase and would have a significant impact if it occurred.

For a look at all of today’s economic events, check out our economic calendar.

Eiko Sievert is an Executive Director in Sovereign and Public Sector ratings at Scope Ratings.

About the Author

Eiko Sievertcontributor

Eiko Sievert is an Executive Director in Scope’s Sovereign & Public Sector ratings group, responsible for ratings and research on a number of public-sector borrowers.

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