Having all but tamed inflation, the Federal Reserve is poised to do something Wednesday it hasn't done in more than four years: Cut its benchmark interest rate, a step that should lead to lower borrowing costs for consumers and businesses just weeks before the presidential election.

And yet an unusual air of uncertainty overhangs this week's meeting: It's unclear just how large the Fed's rate cut will be. Wall Street traders and some economists foresee a growing likelihood that the central bank will announce a larger-than-usual half-point cut. Many analysts foresee a more typical quarter-point rate cut.

China on Wednesday announced sanctions on American companies selling arms to the self-ruled island of Taiwan, which Beijing claims as its own territory and threatens to annex by force.

Chinese state media made the announcement, citing the Foreign Ministry, but gave no details on the companies involved. Taiwan is awaiting deliveries of F-16 fighter jets, Abrams tanks and a range of missiles from the U.S.

The billionaire Microsoft co-founder and philanthropist Bill Gates thinks the richest governments should increase their support for African countries that have been overshadowed by development funding increasingly going toward the humanitarian response to the war in Ukraine as well as support for refugees around the world in recent years.

"There's less money going to Africa at a time when they need it," whether it's for debt relief, vaccinations or to reduce malnutrition, Gates told The Associated Press in an interview. As a portion of aid money, the funds going to Ukraine are "substantial," he said.