Johnson Casts Doubt on Border Deal to Unlock Ukraine Aid, Defying Biden

A White House meeting between the president and congressional leaders did little to break the stalemate over aid to Ukraine, as the Republican speaker insisted on a tougher immigration crackdown.

Conservative Justices Appear Skeptical of Agencies’ Regulatory Power

The Supreme Court considered whether to overrule the seminal 1984 Chevron decision, which requires judges to defer to agencies’ interpretations of ambiguous statutes.

China Told Women to Have Babies, but Its Population Shrank Again

Faced with falling births, China’s efforts to stabilize a shrinking population and maintain economic growth are failing.

The F.D.A. Warned an Asthma Drug Could Induce Despair. Many Were Never Told.

Singulair, now a generic, is still used by millions of people in the United States even after thousands of patients and dozens of studies have described harm.