This investment is safe from both Trump and the Democrats — and it pays 4.7%

Municipal bonds occupy a distinctive position in the U.S. tax code: the interest they pay is generally exempt from federal income tax, and often from state and local taxes for in-state investors. That exemption rests on longstanding law rather than any single administration's agenda, which is why muni bonds are sometimes described as insulated from shifts in Washington's political balance.

The headline's 4.7% figure refers to a taxable-equivalent yield — the yield a taxable bond would need to offer to match a muni's after-tax return for an investor in a given bracket. For higher earners, that after-tax advantage can be meaningful, though it shrinks for those in lower brackets.

What to watch: the relationship between muni yields and Treasury yields, which can signal changing demand for tax-exempt debt; the credit quality of individual issuers, since munis are not uniform; and any proposed changes to the tax treatment of municipal interest, which periodically surface in budget debates. Tax-exempt status has historically endured, but it is a policy feature, not a guarantee.